English to Italian Other Gaming/Video-games/E-sports Table Game

In questo testo "cross" viene utilizzato sia come verbo (to cross off = cancellare... e fin qui nessun problema) ma anche come sostantivo (ho evidenziato i casi con gli asterischi) e in questo caso ho qualche difficoltà.
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The Game of Extra Turns!
Place cards that match this total value face up in front of you. You’re allowed to create this value using one card or the sum of two cards, but never more than two cards! You can create the value as many times as you like in order to draw multiple **crosses**. All the cards you used are placed on the discard pile next to the play area.
Mary plays two single 11s. She also creates two 11s through the sum of two cards (7+4 and 10+1). She crosses off 4 spaces in the 11 row of her table.
Very important: if you cross off the last space in any row of your table, you immediately get to cross off an extra space in another row of your choice (which is a good thing!). You don’t have to play a card for this extra **cross**.
Tim announces: “I’m crossing off 7s!” He plays a single 7, and two 5+2 combinations. He crosses off all three empty spaces in his 7 row and immediately receives an extra**cross**.
He places it in his 9 row.
Note: it's possible and very much allowed (and of course very satisfying) to create a chain reaction of extra **crosses**. Sarah crosses off the last space in her 10 row and immediately receives an extra cross. She places this extra cross in her 8 row, which is now also full. She receives another extra **cross** and places it in her 5 row.
There's no limit to the number of chain reactions you can create. It's even possible to create eleven consecutive extra **crosses**, filling up all your rows and winning the game in style.