Ajedrez de los GM: El Arte del Sacrificio – GM Fernando Peralta

pa_descarga-o-fisico
Array
(
    [options] => Array
        (
            [0] => descarga-inmediato
            [1] => disco-fisico-descarga-inmediato
        )

    [attribute] => pa_descarga-o-fisico
    [product] => WC_Product_Variable Object
        (
            [children:protected] => Array
                (
                    [0] => 35105
                    [1] => 35106
                )

            [visible_children:protected] => Array
                (
                    [0] => 35105
                    [1] => 35106
                )

            [variation_attributes:protected] => Array
                (
                    [pa_descarga-o-fisico] => Array
                        (
                            [0] => descarga-inmediato
                            [1] => disco-fisico-descarga-inmediato
                        )

                )

            [object_type:protected] => product
            [post_type:protected] => product
            [cache_group:protected] => products
            [data:protected] => Array
                (
                    [name] => Ajedrez de los GM: El Arte del Sacrificio - GM Fernando Peralta
                    [slug] => ajedrez-de-los-gm-el-arte-del-sacrificio-gm-fernando-peralta
                    [date_created] => WC_DateTime Object
                        (
                            [utc_offset:protected] => 0
                            [date] => 2013-09-26 01:59:36.000000
                            [timezone_type] => 3
                            [timezone] => America/Los_Angeles
                        )

                    [date_modified] => WC_DateTime Object
                        (
                            [utc_offset:protected] => 0
                            [date] => 2019-12-31 11:37:54.000000
                            [timezone_type] => 3
                            [timezone] => America/Los_Angeles
                        )

                    [status] => publish
                    [featured] => 
                    [catalog_visibility] => visible
                    [description] => <h2>Imperio Ajedrez Volumen 42</h2>
<img class="alignright size-medium wp-image-26212" src="https://www.ichess.es/wp-content/uploads/2013/08/Fernando_Peralta-213x300.jpg" alt="Ajedrez De Los Gm: El Arte Del Sacrificio – Gm Fernando Peralta" width="213" height="300" /><span class="dropcap">L</span>a dificultad y belleza de una partida se pueden relacionar muchas veces con la cantidad de sacrificios que contiene. El sacrificio de material es una herramienta con la que todo jugador fuerte debe estar familiarizado a pesar de su complejidad. Sacrificio es sinónimo de desequilibrio en una partida de ajedrez, es buscar la confrontación generalmente aceptando grandes riesgos. No es para los débiles de espíritu.

En este trabajo el aficionado podrá encontrar una exposición de los principales tipos de sacrificios que pueden darse en una partida. Se hace especial hincapié en los razonamientos que deben realizarse para decidirse por un sacrificio y en la manera de orientarse en el desequilibrado juego resultante. Una guía moderna para poder orientarse al borde del precipicio de las 64 casillas.
<h2>ESQUEMA:</h2>
<strong>CAPÍTULO 1: ¿Qué es un sacrificio? El sacrificio por desarrollo
CAPÍTULO 2: El sacrificio para extraer al rey contrario
CAPÍTULO 3: Un ejemplo extraordinariamente difícil
CAPÍTULO 4: El sacrificio para destruir las defensas enemigas
CAPÍTULO 5: El sacrificio de una pieza por peones (parte 1)
CAPÍTULO 6: El sacrificio de una pieza por peones (parte 2)
CAPÍTULO 7: ¿Cuándo una pieza vale más que varios peones?
CAPÍTULO 8: ¿Se pueden estudiar los sacrificios? El sacrificio típico
CAPÍTULO 9: El sacrificio defensivo
CAPÍTULO 10: Otros tipos de sacrificios posicionales
CAPÍTULO 11: El sacrificio de dama
</strong>
                    [short_description] => 
                    [sku] => 20897
                    [price] => 7.95
                    [regular_price] => 
                    [sale_price] => 
                    [date_on_sale_from] => 
                    [date_on_sale_to] => 
                    [total_sales] => 72
                    [tax_status] => taxable
                    [tax_class] => 
                    [manage_stock] => 
                    [stock_quantity] => 
                    [stock_status] => instock
                    [backorders] => no
                    [low_stock_amount] => 
                    [sold_individually] => 
                    [weight] => 
                    [length] => 
                    [width] => 
                    [height] => 
                    [upsell_ids] => Array
                        (
                        )

                    [cross_sell_ids] => Array
                        (
                        )

                    [parent_id] => 0
                    [reviews_allowed] => 1
                    [purchase_note] => 
                    [attributes] => Array
                        (
                            [pa_presentador] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 9
                                            [name] => pa_presentador
                                            [options] => Array
                                                (
                                                    [0] => 5079
                                                )

                                            [position] => 9
                                            [visible] => 1
                                            [variation] => 
                                        )

                                )

                            [pa_nivel] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 6
                                            [name] => pa_nivel
                                            [options] => Array
                                                (
                                                    [0] => 4532
                                                    [1] => 4533
                                                )

                                            [position] => 10
                                            [visible] => 1
                                            [variation] => 
                                        )

                                )

                            [pa_tipo-de-video] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 14
                                            [name] => pa_tipo-de-video
                                            [options] => Array
                                                (
                                                    [0] => 5464
                                                    [1] => 4592
                                                )

                                            [position] => 11
                                            [visible] => 1
                                            [variation] => 
                                        )

                                )

                            [tiempo-de-duracion] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 0
                                            [name] => Tiempo de duración
                                            [options] => Array
                                                (
                                                    [0] => 3 horas 50 minutos
                                                )

                                            [position] => 12
                                            [visible] => 1
                                            [variation] => 
                                        )

                                )

                            [compatibilidad] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 0
                                            [name] => Compatibilidad
                                            [options] => Array
                                                (
                                                    [0] => Compatible con todos los dispositivos incluyendo PC, Mac (Apple) y Smartphones.
                                                )

                                            [position] => 13
                                            [visible] => 1
                                            [variation] => 
                                        )

                                )

                            [pa_producido-por] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 11
                                            [name] => pa_producido-por
                                            [options] => Array
                                                (
                                                    [0] => 14177
                                                )

                                            [position] => 14
                                            [visible] => 1
                                            [variation] => 
                                        )

                                )

                            [pa_descarga-o-fisico] => WC_Product_Attribute Object
                                (
                                    [data:protected] => Array
                                        (
                                            [id] => 2
                                            [name] => pa_descarga-o-fisico
                                            [options] => Array
                                                (
                                                    [0] => 4982
                                                    [1] => 4983
                                                )

                                            [position] => 15
                                            [visible] => 
                                            [variation] => 1
                                        )

                                )

                        )

                    [default_attributes] => Array
                        (
                            [pa_descarga-o-fisico] => descarga-inmediato
                        )

                    [menu_order] => 0
                    [post_password] => 
                    [virtual] => 
                    [downloadable] => 
                    [category_ids] => Array
                        (
                            [0] => 4978
                            [1] => 4523
                        )

                    [tag_ids] => Array
                        (
                            [0] => 5175
                            [1] => 5450
                            [2] => 5077
                            [3] => 5478
                            [4] => 4631
                            [5] => 5479
                            [6] => 5068
                            [7] => 5460
                            [8] => 5159
                            [9] => 5229
                            [10] => 5480
                            [11] => 5481
                            [12] => 5482
                            [13] => 5483
                            [14] => 5484
                            [15] => 5485
                            [16] => 5486
                            [17] => 5487
                            [18] => 5488
                            [19] => 5489
                            [20] => 5490
                            [21] => 5001
                        )

                    [shipping_class_id] => 0
                    [downloads] => Array
                        (
                        )

                    [image_id] => 294271
                    [gallery_image_ids] => Array
                        (
                            [0] => 294272
                            [1] => 294273
                            [2] => 294274
                        )

                    [download_limit] => -1
                    [download_expiry] => -1
                    [rating_counts] => Array
                        (
                            [4] => 1
                            [5] => 1
                        )

                    [average_rating] => 4.50
                    [review_count] => 2
                )

            [supports:protected] => Array
                (
                )

            [id:protected] => 20897
            [changes:protected] => Array
                (
                )

            [object_read:protected] => 1
            [extra_data:protected] => Array
                (
                )

            [default_data:protected] => Array
                (
                    [name] => 
                    [slug] => 
                    [date_created] => 
                    [date_modified] => 
                    [status] => 
                    [featured] => 
                    [catalog_visibility] => visible
                    [description] => 
                    [short_description] => 
                    [sku] => 
                    [price] => 
                    [regular_price] => 
                    [sale_price] => 
                    [date_on_sale_from] => 
                    [date_on_sale_to] => 
                    [total_sales] => 0
                    [tax_status] => taxable
                    [tax_class] => 
                    [manage_stock] => 
                    [stock_quantity] => 
                    [stock_status] => instock
                    [backorders] => no
                    [low_stock_amount] => 
                    [sold_individually] => 
                    [weight] => 
                    [length] => 
                    [width] => 
                    [height] => 
                    [upsell_ids] => Array
                        (
                        )

                    [cross_sell_ids] => Array
                        (
                        )

                    [parent_id] => 0
                    [reviews_allowed] => 1
                    [purchase_note] => 
                    [attributes] => Array
                        (
                        )

                    [default_attributes] => Array
                        (
                        )

                    [menu_order] => 0
                    [post_password] => 
                    [virtual] => 
                    [downloadable] => 
                    [category_ids] => Array
                        (
                        )

                    [tag_ids] => Array
                        (
                        )

                    [shipping_class_id] => 0
                    [downloads] => Array
                        (
                        )

                    [image_id] => 
                    [gallery_image_ids] => Array
                        (
                        )

                    [download_limit] => -1
                    [download_expiry] => -1
                    [rating_counts] => Array
                        (
                        )

                    [average_rating] => 0
                    [review_count] => 0
                )

            [data_store:protected] => WC_Data_Store Object
                (
                    [instance:WC_Data_Store:private] => WC_Product_Variable_Data_Store_CPT Object
                        (
                            [prices_array:protected] => Array
                                (
                                    [version] => 1579461503
                                    [f9e544f77b7eac7add281ef28ca5559f] => Array
                                        (
                                            [price] => Array
                                                (
                                                    [35105] => 7.95
                                                    [35106] => 14.95
                                                )

                                            [regular_price] => Array
                                                (
                                                    [35105] => 7.95
                                                    [35106] => 14.95
                                                )

                                            [sale_price] => Array
                                                (
                                                    [35105] => 7.95
                                                    [35106] => 14.95
                                                )

                                        )

                                )

                            [internal_meta_keys:protected] => Array
                                (
                                    [0] => _visibility
                                    [1] => _sku
                                    [2] => _price
                                    [3] => _regular_price
                                    [4] => _sale_price
                                    [5] => _sale_price_dates_from
                                    [6] => _sale_price_dates_to
                                    [7] => total_sales
                                    [8] => _tax_status
                                    [9] => _tax_class
                                    [10] => _manage_stock
                                    [11] => _stock
                                    [12] => _stock_status
                                    [13] => _backorders
                                    [14] => _low_stock_amount
                                    [15] => _sold_individually
                                    [16] => _weight
                                    [17] => _length
                                    [18] => _width
                                    [19] => _height
                                    [20] => _upsell_ids
                                    [21] => _crosssell_ids
                                    [22] => _purchase_note
                                    [23] => _default_attributes
                                    [24] => _product_attributes
                                    [25] => _virtual
                                    [26] => _downloadable
                                    [27] => _download_limit
                                    [28] => _download_expiry
                                    [29] => _featured
                                    [30] => _downloadable_files
                                    [31] => _wc_rating_count
                                    [32] => _wc_average_rating
                                    [33] => _wc_review_count
                                    [34] => _variation_description
                                    [35] => _thumbnail_id
                                    [36] => _file_paths
                                    [37] => _product_image_gallery
                                    [38] => _product_version
                                    [39] => _wp_old_slug
                                    [40] => _edit_last
                                    [41] => _edit_lock
                                )

                            [must_exist_meta_keys:protected] => Array
                                (
                                    [0] => _tax_class
                                )

                            [extra_data_saved:protected] => 
                            [updated_props:protected] => Array
                                (
                                )

                            [meta_type:protected] => post
                            [object_id_field_for_meta:protected] => 
                        )

                    [stores:WC_Data_Store:private] => Array
                        (
                            [coupon] => WC_Coupon_Data_Store_CPT
                            [customer] => WC_Customer_Data_Store
                            [customer-download] => WC_Customer_Download_Data_Store
                            [customer-download-log] => WC_Customer_Download_Log_Data_Store
                            [customer-session] => WC_Customer_Data_Store_Session
                            [order] => WC_Order_Data_Store_CPT
                            [order-refund] => WC_Order_Refund_Data_Store_CPT
                            [order-item] => WC_Order_Item_Data_Store
                            [order-item-coupon] => WC_Order_Item_Coupon_Data_Store
                            [order-item-fee] => WC_Order_Item_Fee_Data_Store
                            [order-item-product] => WC_Order_Item_Product_Data_Store
                            [order-item-shipping] => WC_Order_Item_Shipping_Data_Store
                            [order-item-tax] => WC_Order_Item_Tax_Data_Store
                            [payment-token] => WC_Payment_Token_Data_Store
                            [product] => WC_Product_Data_Store_CPT
                            [product-grouped] => WC_Product_Grouped_Data_Store_CPT
                            [product-variable] => WC_Product_Variable_Data_Store_CPT
                            [product-variation] => WC_Product_Variation_Data_Store_CPT
                            [shipping-zone] => WC_Shipping_Zone_Data_Store
                            [webhook] => WC_Webhook_Data_Store
                            [order-item-line_item_removed] => WC_Order_Item_Product_Data_Store
                            [order-item-line_item_switched] => WC_Order_Item_Product_Data_Store
                            [order-item-coupon_pending_switch] => WC_Order_Item_Coupon_Data_Store
                            [order-item-fee_pending_switch] => WC_Order_Item_Fee_Data_Store
                            [subscription] => WCS_Subscription_Data_Store_CPT
                            [product-variable-subscription] => WCS_Product_Variable_Data_Store_CPT
                            [product-subscription_variation] => WC_Product_Variation_Data_Store_CPT
                            [order-item-line_item_pending_switch] => WC_Order_Item_Product_Data_Store
                        )

                    [current_class_name:WC_Data_Store:private] => WC_Product_Variable_Data_Store_CPT
                    [object_type:WC_Data_Store:private] => product-variable
                )

            [meta_data:protected] => 
        )

    [selected] => descarga-inmediato
    [name] => 
    [id] => 
    [class] => 
    [show_option_none] => Elige una opción
)