MESON Chess Problem Database
Problem Display
PID: 268448 (K7/1R2p3/1Pkpn3/1pP1p3/1n2P3/BB3N2/8/2Q5 w - - 0 1)
Evans, TC
Sunday Referee, 1929
(First published on Sun Jul 14 1929)
#2
9 + 7
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Bd5#
- 1...Sc2
- 2.Bd5#
- 1...Sd3
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 2.exd5#
- 1...Sa6
- 2.Bd5#
- 1...Sd4
- 2.Rc7#
- 1...Sf4
- 2.Rc7#
- 1...Sg5
- 2.Rc7#
- 1...Sc7+
- 2.Rxc7#
- 1...Sg7
- 2.Rc7#
- 1...Sd8
- 2.Rc7#
- 1...Sf8
- 2.Rc7#
- 1...d5
- 2.Sxe5#
- 1...Sa2
- Tries
- 1.Ka7?
- 1...Sxc5
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...Sa2
- 2.Bd5#
- 1...Sc2
- 2.Bd5#
- 1...Sd3
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 2.exd5#
- 1...Sa6
- 2.Bd5#
- 1...Sd4
- 2.Rc7#
- 1...Sf4
- 2.Rc7#
- 1...Sg5
- 2.Rc7#
- 1...Sg7
- 2.Rc7#
- 1...Sd8
- 2.Rc7#
- 1...Sf8
- 2.Rc7#
- 1...d5
- 2.Sxe5#
- 1...dxc5!
- 1...Sxc5
- 1.Sd4+?
- 1...Sxd4
- 2.Rc7#
- 1...exd4!
- 1...Sxd4
- 1.Bxb4?
- threat
- 2.Bd5#
- 1...Sc7+
- 2.Rxc7#
- 1...Sf4
- 2.Rc7#
- 2.cxd6#
- 1...d5
- 2.Sxe5#
- 2.Bxd5#
- 2.exd5#
- 1...dxc5!
- threat
- 1.Bxe6?
- threat
- 2.Bd7#
- 2.Rc7#
- 1...Sd5
- 2.Bxd5#
- 2.Bd7#
- 2.exd5#
- 1...Sa6
- 2.Bd5#
- 2.Bd7#
- 1...dxc5!
- threat
- 1.Ka7?
- Keys
- 1.Qh6!
- 1...Sc7+
- 2.Rxc7#
- 1...Kxc5
- 2.Qc1#
- 1...Sxc5
- 2.Sxe5#
- 1...dxc5
- 2.Qxe6#
- 1...Sa2
- 2.Bd5#
- 1...Sc2
- 2.Bd5#
- 1...Sd3
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 2.exd5#
- 1...Sa6
- 2.Bd5#
- 1...Sd4
- 2.Rc7#
- 1...Sf4
- 2.Rc7#
- 1...Sg5
- 2.Rc7#
- 1...Sg7
- 2.Rc7#
- 1...Sd8
- 2.Rc7#
- 1...Sf8
- 2.Rc7#
- 1...d5
- 2.Rc7#
- 1...Sc7+
- 1.Qh6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::B(C)
- S(f);N_GUARD::R1(H)
- S(f);CHECK,N_GUARD::R1(H),XS(f)
- P(e);N_GUARD::S(D),XP(c)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- S(f);N_GUARD,P_SPINS(f),XP(F)::R1(H)
- S(f);N_GUARD::R1(H),XS(f)
- S(a);N_GUARD::B(C)
- S(f);N_GUARD::R1(H)
- P(e);N_GUARD::S(D),XP(c)
- Refutation
- P(e);P_SPINP(e),XP(F)
- Try
- S(D);CHECK
- Vars
- S(f);XS(D)::R1(H)
- Refutation
- P(c);XS(D)
- Try
- B(B);XS(a)
- Threat
- B(C)
- Vars
- S(f);CHECK,N_GUARD::R1(H),XS(f)
- Refutation
- P(e);P_SPINP(e),XP(F)
- Try
- B(C);XS(f)
- Threat
- DUALS(2)
- Refutation
- P(e);P_SPINP(e),XP(F)
- Try
- Actual
- Q(A);
- Vars
- S(f);CHECK,N_GUARD,P_SPINP(e)::R1(H),XS(f)
- K(d);OGATEB,P-FLIGHT,P_SPINS(a),XP(F)::QAR(A)
- S(f);P_SPINP(e),SBLOCK,XP(F)::S(D),XP(c)
- P(e);OGATEB,P_SPINS(f),SBLOCK,XP(F)::QAR2(A),XS(f)
- S(a);N_GUARD::B(C)
- S(f);N_GUARD,P_SPINP(e)::R1(H)
- P(e);P_SPINS(f)::R1(H)
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