funny questions

Thank you valger for finding these cases! They should be fixed now on the test server, let me know if you find any more.

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-2-14/14/8,yB,5/14/14/yB,12,gN/1,gN,12/14/1,bP,12/1,rP,1,rP,10/5,rK,8/14/14/14"]
[Variant "FFA"]
[RuleVariants "DeadKingWalking EnPassant PromoteTo=D"]
[CurrentMove "3"]

1. b6-d6 .. Bi12-c6 .. Nb8-d9

[Variant "Teams"]
[RuleVariants "EnPassant"]
[CurrentMove "4"]
[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-1-14/14/5,yK,8/14/bK,9,gK,3/14/2,rK,11/14/1,bP,12/3,rP,10/4,gR,9/14/14/14"]

1. b6-d6 .. Kf12-f11 .. Re4-c4+
2. d5xc6

[StartFen4 "B-0,0,0,1-0,0,0,0-0,0,0,0-0,0,0,0-0-14/14/14/14/14/14/14/1,yN,12/4,rK,9/1,bP,12/3,rP,10/14/14/14"]
[Variant "FFA"]
[RuleVariants "DeadKingWalking EnPassant PromoteTo=D"]
[CurrentMove "5"]

1. b5-d5+ .. Nb7-c5+
2. d4xc5

this one :

no e.p. when it's safe

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-0-14/7,yK,6/14/11,gK,2/bK,13/bB,13/1,gN,12/14/1,bP,12/1,rP,1,rP,rK,9/14/14/14/14"]
[Variant "Teams"]
[RuleVariants "EnPassant"]
[CurrentMove "3"]

1. b6-d6+ .. Kh13-g12 .. Kl11-k10

interesting situation:

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-0-14/7,yK,6/14/11,gK,2/bK,13/gB,13/1,bN,12/14/1,bP,12/1,rP,1,rP,rK,9/14/14/14/14"]
[Variant "Teams"]
[RuleVariants "EnPassant"]
[CurrentMove "0"]

1. b6-d6+ .. Kh13-g12 .. Kl11-k10

red cannot e.p. but for ex. with red king on  f4 its possible

or hang king  vs double check

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-0-14/7,yK,6/14/11,gK,2/bK,13/bB,13/1,gN,12/14/1,bP,12/1,rP,1,rP,rK,9/14/14/14/14"]
[Variant "Teams"]
[RuleVariants "EnPassant"]
[CurrentMove "4"]

1. b6-d6+ .. Kh13-g12 .. Nb8-c6+
2. d5xc6+

against single check or pin  - e.p. now works ok

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-1-14/14/6,yK,7/11,gK,2/bK,13/bB,13/1,gN,12/14/1,bP,12/1,rP,1,rP,10/5,rK,8/14/14/14"]

[Variant "Teams"]
[RuleVariants "EnPassant"]
[CurrentMove "3"]

1. b6-d6 .. Kg12-f11 .. Nb8-c6

I broke the case when the en passant pawn is giving check. fixed, see test server

i think this is last

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-0-14/14/8,yK,5/bK,13/13,gK/14/14/14/rK,bP,4,gR,7/1,rP,1,rP,10/14/14/14/14"]
[Variant "Teams"]
[RuleVariants "EnPassant"]
[CurrentMove "3"]

1. b6-d6 .. Ki12-h12 .. Kn10-m10

> i think this is last

i hope so ..    should be fixed now.

For those who are interested: The only case I know of of legal moves that are not yet supported: Get out of triplecheck without moving the king.

The question is, what is the general pattern here? only when there are two grasshoppers and en passant? any other ways? any other conditions?

Is it four-way check if yellow pawn faces up?

dis is getting too complicateddddd!

[StartFen4 "B-0,0,0,0-0,0,0,0-0,0,0,0-0,0,0,0-0-14/14/14/10,bG,3/11,dα,2/14/14/12,gP,1/9,rK,rP,1,yO,gG/14/14/14/14/14"]
[Variant "FFA"]
[RuleVariants "DeadKingWalking EnPassant PromoteTo=D"]
[CurrentMove "3"]

1. Gk11-m9 .. Om6-n8+ .. m7-k7+

1.2016 2.9(atomic) 3.no