challenge_to_2p_chess_interaction_lock_in_actor_stake_land_effect

challenge_to_2p_chess_interaction_lock_in_actor_stake_land_effect = {
	scope:actor = {
		save_temporary_scope_as = ordering_char_temp
		ordered_held_title = {
			limit = {
				bg_stake_land_valid_neighbouring_county_to_trade_trigger = { NEIGHBOUR = scope:recipient }
			}
			order_by = bg_stake_land_evaluate_appropriate_county_ordering_value
			save_scope_as = bg_stake_land_actor
			set_variable = wagered_county
		}
	}
}

As written in game/common/scripted_effects/00_board_game_effects.txt.