MESON Chess Problem Database
Problem Display
PID: 70774 (8/p3pN2/R1B1k1Kb/2ppBN2/6pp/1rR2p2/q7/7Q w - - 0 1)
Kisis, Imants J
2nd HM., UV CSTV TT, 1982
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Bb5#
- 1...Qb2
- 2.Bb5#
- 1...Qc2
- 2.Bb5#
- 1...Qd2
- 2.Bb5#
- 1...Qe2
- 2.Bb5#
- 1...Qf2
- 2.Bb5#
- 1...Qg2
- 2.Bb5#
- 1...Qh2
- 2.Bb5#
- 1...Ra3
- 2.Ba4#
- 1...Rxc3
- 2.Ba4#
- 1...Bc1
- 2.Sg7#
- 1...Bd2
- 2.Sg7#
- 1...Be3
- 2.Sg7#
- 1...Bf4
- 2.Sg7#
- 1...Bg5
- 2.Sg7#
- 1...Bg7
- 2.Sxg7#
- 1...f2
- 2.Qxd5#
- 1...c4
- 2.Sd4#
- 1...Qb1
- Tries
- 1.Re3?
- threat
- 2.Sd8#
- 1...Rxe3
- 2.Ba4#
- 1...Bxe3
- 2.Sg7#
- 1...Rb8
- 2.Bf4#
- 1...Qa5!
- threat
- 1.Qe1?
- threat
- 2.Sd8#
- 1...Qa5
- 2.Bf4#
- 1...Qe2
- 2.Bb5#
- 1...Be3
- 2.Sg7#
- 1...Rb8!
- threat
- 1.Re3?
- Keys
- 1.Bf4!
- threat
- 2.Sd8#
- 1...Bxf4
- 2.Sg7#
- 1...Qa5
- 2.Qe1#
- 1...Rb8
- 2.Re3#
- threat
- 1.Bf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 17
- Sets
- Q(a);N_GUARD,P_PINS(D)::R(E)+B(F)
- Q(a);N_GUARD::R(E)+B(F)
- R(b);N_GUARD::R(E)+B(F)
- R(b);N_GUARD,XR(B)::R(E)+B(F)
- B(i);N_GUARD::S(D)
- B(i);N_GUARD::S(D),XB(i)
- P(c);OGATE::QAB1(A),XP(g)
- P(f);N_GUARD::S(D)
- Tries
- Try
- R(B);
- Threat
- S(H)
- Vars
- R(b);N_GUARD,XR(B)::R(E)+B(F)
- B(i);N_GUARD,XR(B)::S(D)
- R(b);N_GUARD::R(B)+B(C)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- S(H)
- Vars
- Q(a);N_GUARD::QAR(A)+B(C)
- Q(a);N_GUARD::R(E)+B(F)
- B(i);N_GUARD::S(D)
- Refutation
- R(b);
- Try
- Actual
- B(C);
- Threat
- S(H)
- Vars
- B(i);N_GUARD,XB(C)::S(D)
- Q(a);N_GUARD::QAR(A)
- R(b);N_GUARD::R(B)
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