BrainKing - Fóruns de discussão (Chess variants (10x8))

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Chess variants (10x8)

Sam has closed his piano and gone to bed ... now we can talk about the real stuff of life ... love, liberty and games such as
Janus, Capablanca Random, Embassy Chess & the odd mention of other 10x8 variants is welcome too

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- invitations to games (you can also use the New Game menu or for particular games: Janus; Capablanca Random; or Embassy)
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... speculation on who has an advantage or the benefits of potential moves is not permitted while that particular game is in progress)
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1. Fevereiro 2005, 00:56:10

Anencephal

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Assunto: Re: ONE YEAR Rook Membership Contest......! Part-II

Q1:
part1:
1.e3 j5 2. Cd3 Rj6 3. Qf3 Rg6 4. Cf4 h6 5. Cxg6#

part2:
1. f3 a5 2. Cd3 Ra6 3. Cf4 Rg6 4. Ad4 h6 5. Ab3 f6 6. Cxg6#

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Q2:
1.Bb1 f5 2.Ka4 h5 3.Ka3 h4 4.Ka2 f4 5.Ka1 h2 6.Ba2 h3 7.Kb1 f5 8.Kc1 Ka8 9.Kd1 Kb7 10.Bb1 Ka8 11.Ke1 Kb7 12.Kf1 Ka8 13.Kf2 Kb7 14.Ke1 (the point is to make a triangle to lose a turn) Ka8 15.Kd1 Kb7 16.Kc1 Ka8 17.Ba2 Kb7 18.Kb1 Ka8 19.Ka1 Kb7 20.Bb1 Ka8 21.Ka2 Kb7 22.Ka3 Ka8 23.Ka4 Kb7 24.Ka5 Kc8 (24..,Ka8 25.Ka6 any 26.b7#) 25.Ka6 f2 26.b7+ Kd7 27.b8Q f1Q 28.Qxe5
I hope that black is in a mate trap eg: 28..,Qxh1 29.Qxf5+ Ke8 30.Qg6+ Kd8 31.Bb6+ Ke7 32.Bc5+ Kd8 33.Qd6+ Kc8 34.Qe6+ Kb8 35.Bd6+ Ka8 36.Qg8#
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Q3:
1.Rd6
A)1..,Bxd6 2.exd6 (threat:3.Bxc5 and double attack to queen and king)
a1) 2..,Kd7 3.f5 Bh7 (or Bxf5) 4.Bxf7 Nf6 5.Bg5 (and 6.capturesN)
a2)2..,Qa7 (or Qd8) 3.f5 Bxf5(or Bh7 ) 4.Bxf7 Kxf7 5.Qc4 (and black loses king or knight or bishop in next move)
a3)2..,Qc6 3.Bb5
a4)2..Kd8 same as a1 but in last move it’s possible to play 5..,Nd7 6.BxK
a5)2..Kf8 3.f5 Bxf5 [3..,Bh7 4.Qxh5 5.QxB(or N)] 4.Bxf7 Nf6 (or Kxf7) 5.Qf3 and 6.QxB(or K or N)
a6)2..,Be4 3.Bxc5

B)1..,Rc6 2.Rxg6 (threat:3.Bxf7 Kxf7 4.Qc4 Re6 5.Bxc5 and 6.captures Q or B)
b1)2..,Rxg6 3.Bxc5 and 4.captures Q or B)
b2)2..,Kd7(d8) 3.Bxf7 and 4.captures N

C)1..,Qc7 2.Rxg6 (two threats: 3.Rxg7 Nh6 4.Qxh5 and 3.Bxf7 Kxf7 4.Qc4)
c1)2..,Bd8 3.Rxg7 Ne7 4.Rd1 and 5.captures N or Q or B
c2)2..Bf8 3.Bxc5 and 4.captures N or Q or B or K
c3)2..Bh4 3.g3 Bd8 4.Rd1 Be7 5.Bxf7 Kxf7 6.Qc4 and 7.captures K or N (the longest line)

D)1..Qa7 same as (C) but black queen doesn’t defend f7 after Bishop’s moves so one of two threats win.
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Q4:
1.Bc7 Qxc8 (1..,Nxc7 2.gxf7+ Kf8 3.Qxc7) 2.gxf7+ Kh8 (2..,Kf8 3.Bd6#) 3.Be5 (4.Ke7#) Qc5 [3..,h6(h5) 4.Kg6#; 3..,Qf8 4.Ke6+ Qg7 5.f8Q#; 3..,Qc6+ 4.Ke7+;3..Qb8 4.Bxb8; 3..Qd8+ 4.Ke6+ ; 3..Qa6 4.Ke7+; 3..,Qf5+ 4.Kxf5#]
4.Bb2 Nc7 5.Ba1 a4 6.Bb2 a3 7.Ba1 a2 8.Bb2 a1Q 9.Bxa1 Qa3 10.Kf5+ Qxa1 11.f8Q#

(9..,Qa5 10.f8Q#; 9..,h6(h5) 10.Kg6+ Qe5 11.Bxe5# ; 9..,Nd5+ 10.Ke6+ Nc3 11.Bxc3+ Qxc3 12.f8Q# ; 9..,Ne8+ 10.fxe8Q+ Qf8+ 11.Qxf8#; 9..,Qf2+ Ke7+ 10.Qf6 Bxf6#)