Klassieke puzzels

SELECT DISTINCT 1 AS `status`, `e`.`entity_id`, `e`.`attribute_set_id`, `e`.`type_id`, `e`.`created_at`, `e`.`updated_at`, `e`.`sku`, `cat_index`.`position` AS `cat_index_position`, `e`.`name`, `e`.`short_description`, `e`.`sku`, `e`.`price`, `e`.`special_price`, `e`.`special_from_date`, `e`.`special_to_date`, `e`.`small_image`, `e`.`thumbnail`, `e`.`news_from_date`, `e`.`news_to_date`, `e`.`url_key`, `e`.`required_options`, `e`.`image_label`, `e`.`small_image_label`, `e`.`thumbnail_label`, `e`.`msrp_display_actual_price_type`, `e`.`msrp`, `e`.`tax_class_id`, `e`.`price_type`, `e`.`weight_type`, `e`.`price_view`, `e`.`links_purchased_separately`, `e`.`links_exist`, `e`.`volume_weight`, `e`.`custom999_leeftijd_nofilter`, `e`.`custom999_spelersvan_nofilter`, `e`.`custom999_spelerstm_nofilter`, `e`.`custom999_duurvan_nofilter`, `e`.`custom999_levering`, `e`.`custom999_aantal_spelers`, `e`.`custom999_gemiddelde_speeltijd`, `e`.`custom999_leeftijd`, `e`.`custum999_label_spel`, `e`.`custom999_min_voorraad`, `e`.`swatch_image`, `e`.`sw_featured`, `e`.`postnl_parcel_count`, `e`.`postnl_parcel_volume`, `e`.`am_open_amount_min`, `e`.`am_open_amount_max`, `e`.`am_gift_card_type`, `e`.`postnl_disable_delivery_days`, `price_index`.`price`, `price_index`.`tax_class_id`, `price_index`.`final_price`, IF(price_index.tier_price IS NOT NULL, LEAST(price_index.min_price, price_index.tier_price), price_index.min_price) AS `minimal_price`, `price_index`.`min_price`, `price_index`.`max_price`, `price_index`.`tier_price`, `stock_status_index`.`stock_status` AS `is_salable`, `reservation`.`quantity` AS `reserved_qty` FROM `catalog_product_flat_1` AS `e` INNER JOIN `catalog_category_product_index_store1` AS `cat_index` ON cat_index.product_id=e.entity_id AND cat_index.store_id=1 AND cat_index.visibility IN(2, 4) AND cat_index.category_id=53 INNER JOIN `catalog_product_index_price` AS `price_index` ON price_index.entity_id = e.entity_id AND price_index.website_id = '1' AND price_index.customer_group_id = 0 INNER JOIN `cataloginventory_stock_status` AS `stock_status_index` ON e.entity_id = stock_status_index.product_id LEFT JOIN (SELECT `inventory_reservation`.`sku`, SUM(quantity) AS `quantity` FROM `inventory_reservation` WHERE (stock_id = 1) GROUP BY `sku`) AS `reservation` ON reservation.sku = e.sku ORDER BY IF(stock_status_index.qty + IF(reserved_qty IS NOT NULL, reserved_qty, 0) > 0 OR e.type_id in ('grouped','bundle'), 0, 1), IF(stock_status_index.qty + IF(reserved_qty IS NOT NULL, reserved_qty, 0) > 0 OR e.type_id in ('grouped','bundle'), 0, 1), IF(stock_status_index.qty + IF(reserved_qty IS NOT NULL, reserved_qty, 0) > 0 OR e.type_id in ('grouped','bundle'), 0, 1), `cat_index_position` asc, `cat_index`.`position` asc, `e`.`entity_id` DESC, `cat_index_position` asc, `cat_index`.`position` asc LIMIT 12