Measured tafl game lengths

Measured tafl game lengths.

Tafl variant	All games moves	White won moves	Black won moves	Ratio
Simple Tafl 5x5	15	13	16	1.2
Brandubh 7x7 (Walker)	22	21	23	1.1
Market Hnefatafl 9x9	32	30	34	1.1
Frisian Dablo0 11x9	35	41	29	1.4
Sea battle-2526 9x9	36	29	42	1.5
Historical Hnefatafl 9x9 (Saami Tablut-w)	38	36	40	1.1
Daldøs 3x12	40	40	41	1.0
Saami Sáhkku 3x15 (Kåfjord)	43	45	42	1.1
Daldøs 3x16	43	42	44	1.0
Simple Tafl 11x11	45	37	51	1.4
Historical Hnefatafl 11x11 (Welsh Tawlbwrdd-w)	47	42	51	1.2
Daldøs 3x14	48	48	48	1.0
Sea battle tafl 11x11	49	40	54	1.4
Tyr 11x11	52	41	61	1.5
Sea battle tafl 13x13	56	42	68	1.6
Historical Hnefatafl 13x13	58	48	66	1.4
Total Hnefatafl 11x11	59	47	74	1.6
Odin 15x15	59	52	67	1.3
Frisian Dablo 11x9	64	64	65	1.0
Berserk 11x11	64	50	77	1.5
Copenhagen Hnefatafl 11x11	64	49	79	1.6
Sea battle tafl 15x15	67	49	82	1.7
Tyr 15x15	76	62	88	1.4
Odin 17x17	77	55	95	1.7
Saami Daabloe 11x9	81	80	82	1.0
Alea Berserk 19x19 (Bartley)	85	74	100	1.4

The table shows for each game variant the quadratic average of the number of moves for all games, for games alone where defenders (white) won and games alone where attackers (black) won.

Some of the variants come out very steady, in that it almost doesn't matter to the gamelength whether white or black wins.
Such variants are suited for use of a chess clock.