← II Rio Chess Masters 2026 (ITT) · Round 5

Arenas, David (2343)vsRibeiro, Matheus Mendes Domingues (2313)1-0

Zukertort Opening: Nimzo-Larsen Variation · 185 half-moves · 4/14/2026

AI summary

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Longest thinks

Positions where players took the most time — the arrow shows the move actually played.

Arenas, David

White · Middlegame

31 min

Move 40: Kf2Lichess ↗

Ribeiro, Matheus Mendes Domingues

Black · Middlegame

30 min

Move 40: Kg8Lichess ↗

Arenas, David

White · Opening

22 min

Move 10: Nxd6Lichess ↗

Total time White

2h 38 min

Arenas, David

Total time Black

2h 41 min

Ribeiro, Matheus Mendes Domingues

Gap

2m 10s

Ribeiro, Matheus Mendes Domingues used more clock

Breakdown by phase

Phase	♔ Arenas, David	♚ Ribeiro, Matheus Mendes Domingues
Opening 15 moves	38 min ≈ 2m 36s / move	42 min ≈ 2m 50s / move
Middlegame 25 moves	1h 17 min ≈ 3m 6s / move	1h 22 min ≈ 3m 18s / move
Endgame 53 moves	42 min ≈ 48s / move	36 min ≈ 42s / move

Remaining clock

Time spent per move

Move-by-move details (185 half-moves)

#	Phase	White	Time	Black	Time
1	Open.	Nf3	2s	Nf6	1s
2	Open.	b3	1s	d5	1s
3	Open.	Bb2	1s	e6	1s
4	Open.	c4	1s	Bd6	1m 52s
5	Open.	e3	51s	O-O	45s
6	Open.	Nc3	38s	c6	19s
7	Open.	Qc2	10s	e5	6s
8	Open.	cxd5	1m 14s	cxd5	1m 25s
9	Open.	Nb5	14s	Nc6	5s
10	Open.	Nxd6	22 min	Qxd6	9s
11	Open.	Rc1	7s	Bg4	10 min
12	Open.	Qc5	10 min	Qe6	21 min
13	Open.	Be2	33s	e4	3m 21s
14	Open.	Nd4	2m 8s	Nxd4	59s
15	Open.	Qxd4	6s	Bxe2	50s
16	MG	Kxe2	3s	Qa6+	4m 31s
17	MG	Ke1	6m 2s	Qxa2	1m 42s
18	MG	Qc3	12s	d4	1m 55s
19	MG	Qc2	2m 53s	d3	3m 31s
20	MG	Qc3	10s	Qa6	11s
21	MG	f3	13s	Qe6	1m 21s
22	MG	Kf2	58s	Rfe8	8 min
23	MG	Qb4	7m 56s	b6	1m 12s
24	MG	Rhf1	3m 1s	a5	3m 18s
25	MG	Qb5	3m 53s	Rac8	4m 42s
26	MG	Kg1	1m 10s	h6	3m 6s
27	MG	Bxf6	48s	Qxf6	1m 47s
28	MG	fxe4	29s	Qd6	2m 45s
29	MG	Rc4	1m 53s	Qe6	1m 40s
30	MG	Rxc8	5m 9s	Rxc8	2m 56s
31	MG	Qxd3	6s	Re8	20s
32	MG	Qb5	1m 48s	Qxe4	2m 37s
33	MG	Qxb6	7s	Qd5	17s
34	MG	Qc7	1m 25s	f6	4m 42s
35	MG	Qc4	59s	Rd8	13s
36	MG	d4	57s	Kh8	2s
37	MG	Qxd5	5m 33s	Rxd5	2s
38	MG	Rc1	27s	Rb5	5s
39	MG	Rc3	4s	Rb4	53s
40	MG	Kf2	31 min	Kg8	30 min
41	End.	h4	14s	Kf7	23s
42	End.	h5	1m 6s	Ke6	1m 20s
43	End.	Kf3	56s	Rb5	1m 12s
44	End.	g4	35s	f5	7s
45	End.	Rc6+	1m 48s	Kf7	1s
46	End.	Rc7+	7m 13s	Kf6	24s
47	End.	Rc5	2m 31s	fxg4+	31s
48	End.	Kf4	8s	Rxb3	1m 19s
49	End.	Rf5+	6s	Ke6	49s
50	End.	Rxa5	3s	Kf6	1m 36s
51	End.	Rf5+	21s	Ke7	23s
52	End.	Re5+	8s	Kf6	2s
53	End.	Kxg4	8s	Rb1	40s
54	End.	Rf5+	4m 27s	Ke6	10s
55	End.	Ra5	19s	Rf1	31s
56	End.	e4	23s	Rg1+	1m 5s
57	End.	Kf3	10s	Rf1+	23s
58	End.	Kg2	4m 8s	Rf4	2m 55s
59	End.	Re5+	11s	Kd6	33s
60	End.	Kg3	17s	Rf1	2s
61	End.	Ra5	29s	Rg1+	1 min
62	End.	Kf2	33s	Rh1	25s
63	End.	Ra7	45s	Rd1	1m 20s
64	End.	Ke3	37s	Re1+	36s
65	End.	Kd3	20s	Rd1+	45s
66	End.	Kc3	3s	Rc1+	41s
67	End.	Kd2	4s	Rg1	8s
68	End.	Ke3	1m 15s	Re1+	19s
69	End.	Kd3	1m 21s	Rd1+	4s
70	End.	Kc3	4s	Rc1+	11s
71	End.	Kd2	4s	Rg1	5s
72	End.	Ra6+	34s	Ke7	21s
73	End.	d5	12s	Rg5	2m 46s
74	End.	Rg6	1m 46s	Rxh5	58s
75	End.	Rxg7+	2s	Kf6	10s
76	End.	Rg8	2s	Rh3	1m 37s
77	End.	Rf8+	1m 37s	Ke5	58s
78	End.	Re8+	2s	Kd6	25s
79	End.	Re6+	8s	Kd7	1s
80	End.	Ke2	16s	Kd8	57s
81	End.	Rf6	15s	Ke7	27s
82	End.	Rf3	13s	Rh1	46s
83	End.	Ke3	17s	h5	1m 13s
84	End.	Kd4	20s	h4	29s
85	End.	Ke5	24s	Rg1	19s
86	End.	d6+	2m 10s	Ke8	40s
87	End.	Ra3	18s	Rg5+	51s
88	End.	Kf6	2 min	Rh5	21s
89	End.	e5	2s	Kd7	1 min
90	End.	e6+	54s	Kxd6	5s
91	End.	Rd3+	2s	Kc7	42s
92	End.	e7	2s	Rh8	58s
93	End.	Kg7	15s		—