Player #1373

klaashaas

MemberNL

Registered: 1 Jul 2002
Last active · UTC: 4 Nov 2026

About

Hi, I'm Mathijs Claassen from The Netherlands.

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Ratings & current tournaments

A ? marks a rating with higher uncertainty. W / D / L counts completed games; summaries refresh after completed games when this page is loaded again.

Game / variant	Games	W / D / L	Rating	Rank	Ladder position	Championship
Amazons · Size 10	695	Loading…	1756.4	8 kyu	Not registered	Not in a current group
Backgammon · 7-point match (doubling cube, Crawford)	2	Loading…	Not rated	—	#3	Not in a current group
Backgammon · Single game (no doubling cube)	4	Loading…	1478.3	20 kyu	#6	Not in a current group
Breakthrough · Size 8	102	Loading…	1572.6	14 kyu	Not registered	Not in a current group
CONHEX · Conhex	267	Loading…	1726.3	10 kyu	#4	Not in a current group
Catchup · Random	287	Loading…	1711.6	8 kyu	#3	Not in a current group
Catchup · Size 5	360	Loading…	1761.7	7 kyu	#5	Not in a current group
Chess	103	Loading…	1498.5	16 kyu	Not registered	Not in a current group
Chess · Chess960	6	Loading…	1473.6	19 kyu	Not registered	Not in a current group
Connect6 · Size 19	271	Loading…	1535.1	13 kyu	Not registered	Not in a current group
DVONN	358	Loading…	1786.2	9 kyu	Not registered	Not in a current group
Dots and Boxes · Size 4x4	3	Loading…	Not rated	—	Not registered	Not in a current group
Dots and Boxes · Size 5x5	388	Loading…	1827.3	7 kyu	Not registered	Not in a current group
Dots and Boxes · Size 6x6	12	Loading…	1647.7	17 kyu	Not registered	Not in a current group
Draughts · Dameo	13	Loading…	1477.0	18 kyu	Not registered	Not in a current group
Draughts · English Draughts/Checkers	4	Loading…	1529.1	18 kyu	Not registered	Not in a current group
Draughts · International Draughts	16	Loading…	1609.3	16 kyu	Not registered	Not in a current group
EinStein würfelt nicht! · 1-point game	43	Loading…	1575.2	14 kyu	Not registered	Not in a current group
EinStein würfelt nicht! · 11-points match	1	Loading…	Not rated	—	Not registered	Not in a current group
EinStein würfelt nicht! · 3-points match	297	Loading…	1717.3	9 kyu	Not registered	Not in a current group
EinStein würfelt nicht! · 5-points match	6	Loading…	Not rated	—	Not registered	Not in a current group
EinStein würfelt nicht! · 50-points match	1	Loading…	Not rated	—	Not registered	Not in a current group
EinStein würfelt nicht! · 7-points match	24	Loading…	1523.6	16 kyu	Not registered	Not in a current group
EinStein würfelt nicht! · Backwards capture	13	Loading…	Not rated	—	Not registered	Not in a current group
EinStein würfelt nicht! · Black hole	18	Loading…	1453.6	19 kyu	Not registered	Not in a current group
Fendo · Size 7	20	Loading…	1491.0	17 kyu	Not registered	Not in a current group
Four in a row · Size 9x9	145	Loading…	1755.1	12 kyu	Not registered	Not in a current group
Go · Hahn Pointing System	17	Loading…	1525.5	17 kyu	Not registered	Not in a current group
Go · Random100	30	Loading…	1545.7	16 kyu	Not registered	Not in a current group
Go · Size 13x13	595	Loading…	1934.3	3 kyu	Not registered	League 1 · Group 1
Go · Size 19x19	2160	Loading…	2088.6	1 kyu	#18	Not in a current group
Go · Size 37x37	10	Loading…	1612.1	17 kyu	Not registered	Not in a current group
Go · Size 9x9	733	Loading…	1986.8	4 kyu	Not registered	Not in a current group
Go · Toroidal Go	158	Loading…	1773.3	9 kyu	Not registered	Not in a current group
Golem Word Game · 100 letters	113	Loading…	1564.5	18 kyu	Not registered	Not in a current group
Gomoku	318	Loading…	1632.2	12 kyu	Not registered	Not in a current group
Gomoku · Gomoku Pro 9x9	23	Loading…	1392.6	17 kyu	Not registered	Not in a current group
Havannah · Size 10	83	Loading…	1658.7	11 kyu	Not registered	Not in a current group
Havannah · Size 4	11	Loading…	Not rated	—	Not registered	Not in a current group
Havannah · Size 5	10	Loading…	1462.5	19 kyu	Not registered	Not in a current group
Havannah · Size 6	3	Loading…	Not rated	—	Not registered	Not in a current group
Havannah · Size 7	2	Loading…	Not rated	—	Not registered	Not in a current group
Havannah · Size 8	57	Loading…	1493.8	15 kyu	Not registered	Not in a current group
Hex · Size 11	1	Loading…	1485.0	20 kyu	Not registered	Not in a current group
Hex · Size 13	519	Loading…	1765.0	8 kyu	Not registered	Not in a current group
Hex · Size 19	75	Loading…	1687.0	15 kyu	Not registered	Not in a current group
LYNGK · Stack6	238	Loading…	1640.3	11 kyu	Not registered	Not in a current group
Lines of Action · Quick	5	Loading…	1530.9	19 kyu	Not registered	Not in a current group
Lines of Action · Scramble	2	Loading…	1470.9	20 kyu	Not registered	Not in a current group
Lines of Action · Size 8x8	151	Loading…	1589.7	12 kyu	Not registered	Not in a current group
Morelli · Size 11	5	Loading…	1528.7	18 kyu	Not registered	Not in a current group
Morelli · Size 13	11	Loading…	1597.9	17 kyu	Not registered	Not in a current group
Morelli · Size 31	1	Loading…	Not rated	—	Not registered	Not in a current group
Morelli · Size 9	46	Loading…	1540.7	15 kyu	Not registered	Not in a current group
OSKI · Dutch	16	Loading…	1486.2	17 kyu	Not registered	Not in a current group
OSKI · English	26	Loading…	1438.7	17 kyu	Not registered	Not in a current group
OSKI · Greek	1	Loading…	Not rated	—	Not registered	Not in a current group
Ocean's Eleven · 54-card	580	Loading…	1633.7	9 kyu	#2	Not in a current group
Polyomino · hexa	12	Loading…	1531.5	17 kyu	Not registered	Not in a current group
Polyomino · mini	26	Loading…	1485.2	16 kyu	Not registered	Not in a current group
Polyomino · penta	89	Loading…	1480.4	15 kyu	Not registered	Not in a current group
Polyomino · small	41	Loading…	1521.4	15 kyu	Not registered	Not in a current group
QYPS · Size 5	9	Loading…	1475.3	18 kyu	Not registered	Not in a current group
QYPS · Size 8	24	Loading…	1624.4	15 kyu	Not registered	Not in a current group
Reversi · Size 10x10	526	Loading…	2404.9	5 dan	#2	Not in a current group
Reversi · Size 12x12	146	Loading…	2040.9	6 kyu	#2	League 1 · Group 1
Reversi · Size 6x6	203	Loading…	1847.0	7 kyu	#2	Not in a current group
Reversi · Size 8x8	1046	Loading…	2252.3	2 dan	Not registered	Not in a current group
Shogi	17	Loading…	1375.0	18 kyu	Not registered	Not in a current group
Shogi · Mini Shogi 5x5	6	Loading…	1500.5	18 kyu	Not registered	Not in a current group
Shogi · Shogi 3x4	1	Loading…	Not rated	—	Not registered	Not in a current group
Shogi · Tori Shogi	1	Loading…	Not rated	—	Not registered	Not in a current group
Sixfold · Random board	20	Loading…	1472.7	17 kyu	#6	Not in a current group
Slither · Size 13	54	Loading…	1545.8	14 kyu	Not registered	Not in a current group
Slither · Size 9	24	Loading…	1494.2	16 kyu	Not registered	Not in a current group
StreetSoccer · Street Soccer	975	Loading…	1942.7	4 kyu	#18	Not in a current group
TZAAR · Random	1205	Loading…	1780.4	6 kyu	#10	Not in a current group
Tumbleweed · Size 4	88	Loading…	1354.2	16 kyu	Not registered	Not in a current group
Tumbleweed · Size 6	49	Loading…	1439.9	15 kyu	Not registered	Not in a current group
Tumbleweed · Size 8	2	Loading…	1475.3	20 kyu	Not registered	Not in a current group
Twixt PP · Size 24	264	Loading…	1698.0	10 kyu	Not registered	Not in a current group
WYPS · Dutch 8	1	Loading…	1516.8	19 kyu	Not registered	Not in a current group
WYPS · Numeric	66	Loading…	1521.1	14 kyu	Not registered	Not in a current group
WYPS · Numeric small	220	Loading…	1593.2	12 kyu	Not registered	Not in a current group
XiangQi	15	Loading…	1381.6	19 kyu	Not registered	Not in a current group

Game archive

Game statusGame and variantReset filters

Games are ordered by game ID, newest first, rather than by finish date.

Current games

Game	First player	Second player	Result	Moves
#2571341 · TZAAR · Random	Eykca	klaashaas	?	4
#2571259 · CONHEX · Conhex	klaashaas	Jos Dekker	?	4
#2571252 · Catchup · Random	goseji	klaashaas	?	4
#2570561 · Reversi · Size 6x6	Smaughster	klaashaas	?	6
#2570482 · CONHEX · Conhex	Randolph King	klaashaas	?	0
#2570006 · Backgammon · Single game (no doubling cube)	Leira	klaashaas	?	17
#2569704 · StreetSoccer · Street Soccer	klaashaas	simon craddock	?	2
#2569379 · Backgammon · Single game (no doubling cube)	Richard Malaschitz	klaashaas	?	24
#2569373 · Backgammon · Single game (no doubling cube)	vstjrt	klaashaas	?	19
#2569351 · Backgammon · 7-point match (doubling cube, Crawford)	goseji	klaashaas	?	20
#2569308 · TZAAR · Random	klaashaas	XanderN	?	11
#2569287 · Backgammon · 7-point match (doubling cube, Crawford)	klaashaas	GolemBot Two	?	133
#2568997 · StreetSoccer · Street Soccer	OliverKoehn	klaashaas	?	12
#2568150 · StreetSoccer · Street Soccer	nopanic	klaashaas	?	22
#2568102 · Sixfold · Random board	Luca Cerrato	klaashaas	?	12
#2567854 · Ocean's Eleven · 54-card	klaashaas	William Fraser	?	47
#2567761 · CONHEX · Conhex	Luca Cerrato	klaashaas	?	16
#2567756 · Catchup · Random	jytou	klaashaas	?	12
#2567676 · Ocean's Eleven · 54-card	Eliott A	klaashaas	?	68
#2567673 · Go · Size 19x19	GolemBot Two	klaashaas	?	90
#2567670 · Sixfold · Random board	klaashaas	Hjallti	?	15
#2567543 · Reversi · Size 12x12	encio	klaashaas	?	16
#2567542 · Reversi · Size 12x12	klaashaas	hoodie	?	19
#2567540 · Reversi · Size 12x12	klaashaas	goseji	?	25
#2567539 · Reversi · Size 12x12	varegka	klaashaas	?	20
#2567538 · Reversi · Size 12x12	klaashaas	sarok	?	20
#2567537 · Reversi · Size 12x12	Diamante	klaashaas	?	15
#2567536 · Reversi · Size 12x12	klaashaas	Toptal	?	27
#2567535 · Reversi · Size 12x12	Margaliot	klaashaas	?	17
#2567178 · Ocean's Eleven · 54-card	encio	klaashaas	?	39
#2566479 · Ocean's Eleven · 54-card	Matteo A.	klaashaas	?	105
#2566412 · Reversi · Size 10x10	Toptal	klaashaas	?	40
#2566134 · Catchup · Size 5	klaashaas	jytou	?	23
#2565722 · TZAAR · Random	Raptoricus	klaashaas	?	22
#2565512 · Go · Size 19x19	kyy	klaashaas	?	44
#2564922 · Reversi · Size 10x10	Margaliot	klaashaas	?	33
#2563395 · Go · Size 19x19	klaashaas	add3993	?	43
#2562733 · Reversi · Size 10x10	klaashaas	Smaughster	?	73
#2562336 · Reversi · Size 12x12	klaashaas	Smaughster	?	75
#2561633 · Go · Size 19x19	dead eye	klaashaas	?	66
#2559363 · Reversi · Size 12x12	Toptal	klaashaas	?	120
#2559003 · Go · Size 19x19	klaashaas	Smaughster	?	137
#2558398 · Go · Size 19x19	klaashaas	Tim Shih	?	105
#2558320 · Reversi · Size 12x12	Roel	klaashaas	?	72
#2556984 · Go · Size 13x13	Thomas	klaashaas	?	80
#2556982 · Go · Size 13x13	mass	klaashaas	?	108
#2556980 · Go · Size 13x13	drToma	klaashaas	?	92
#2556968 · Go · Size 13x13	cloudbank	klaashaas	?	70
#2551259 · Go · Size 19x19	klaashaas	dorota	?	151
#2551258 · Go · Size 19x19	dorota	klaashaas	?	146