The games involve challenges and rules involving the exercise of cognitive functions, especially the working memory, attention and capacity of solving problems.
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	2:det	Discourse=joint-other_m:48->38:3|Entity=(2-abstract-giv:act-cf1*-2-coref
2	games	game	NOUN	NNS	Number=Plur	3	nsubj	3:nsubj	Entity=2)
3	involve	involve	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
4	challenges	challenge	NOUN	NNS	Number=Plur	3	obj	3:obj	Entity=(140-abstract-new-cf5-1-sgl)
5	and	and	CCONJ	CC	_	6	cc	6:cc	_
6	rules	rule	NOUN	NNS	Number=Plur	4	conj	3:obj|4:conj:and	Entity=(141-abstract-new-cf7-4-sgl
7	involving	involve	VERB	VBG	VerbForm=Ger	9	case	9:case	Discourse=elaboration-attribute:49->48:0
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	9:det	Entity=(142-event-new-cf6-2-sgl
9	exercise	exercise	NOUN	NN	Number=Sing	4	acl	4:acl	_
10	of	of	ADP	IN	_	12	case	12:case	_
11	cognitive	cognitive	ADJ	JJ	Degree=Pos	12	amod	12:amod	Entity=(22-abstract-giv:inact-cf4-2-coref
12	functions	function	NOUN	NNS	Number=Plur	9	nmod	9:nmod:of	Entity=22)142)|SpaceAfter=No
13	,	,	PUNCT	,	_	17	punct	17:punct	_
14	especially	especially	ADV	RB	Degree=Pos	17	advmod	17:advmod	_
15	the	the	DET	DT	Definite=Def|PronType=Art	17	det	17:det	Entity=(86-abstract-giv:inact-cf3-3-coref
16	working	working	NOUN	NN	Number=Sing	17	compound	17:compound	_
17	memory	memory	NOUN	NN	Number=Sing	12	appos	12:appos	Entity=86)|SpaceAfter=No
18	,	,	PUNCT	,	_	19	punct	19:punct	_
19	attention	attention	NOUN	NN	Number=Sing	17	conj	12:appos|17:conj:and	Entity=(5-abstract-giv:act-cf2-1-coref)
20	and	and	CCONJ	CC	_	21	cc	21:cc	_
21	capacity	capacity	NOUN	NN	Number=Sing	17	conj	12:appos|17:conj:and	Entity=(143-abstract-new-cf8-1-sgl
22	of	of	SCONJ	IN	_	23	mark	23:mark	Discourse=elaboration-attribute:50->49:0
23	solving	solve	VERB	VBG	VerbForm=Ger	21	acl	21:acl:of	_
24	problems	problem	NOUN	NNS	Number=Plur	23	obj	23:obj	Entity=143)141)|SpaceAfter=No
25	.	.	PUNCT	.	_	3	punct	3:punct	_
