MESON Chess Problem Database
Problem Display
PID: 2042 (2Q5/r2nKR2/1p3p2/2p1kN2/b1PrB3/p2PR1P1/1B6/3q4 w - - 0 1)
Barnes, Barry Peter
2nd HM., The Problemist, 1962
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.Bxd3#
- 1...Ra5
- 2.Qc7#
- 1...Ra6
- 2.Qc7#
- 1...Rc7
- 2.Qxc7#
- 1...Ra8
- 2.Qc7#
- 1...Sb8+
- 2.Bb7#
- 1...Sf8+
- 2.Bb7#
- 1...Qxd3
- Tries
- 1.Ke8?
- threat
- 2.Re7#
- 1...Sb8+
- 2.Bc6#
- 1...Sf8+
- 2.Bc6#
- 1...Ke6
- 2.Re7#
- 1...Qh5!
- threat
- 1.Sxd4?
- threat
- 2.Sf3#
- 2.Sc6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bb7#
- 2.Bh7#
- 2.Ba8#
- 1...Sb8+
- 2.Bb7#
- 1...Sf8+
- 2.Bb7#
- 1...Qxd3
- 2.Sf3#
- 2.Sc6#
- 2.Bxd3#
- 1...cxd4
- 2.Bg6#
- 2.Bh7#
- 1...Qe2
- 2.Sf3#
- 2.Sc6#
- 1...Qf3
- 2.Sxf3#
- 2.Sc6#
- 2.Bxf3#
- 1...Qg4
- 2.Sf3#
- 2.Sc6#
- 1...Qc1
- 2.Sf3#
- 2.Sc6#
- 1...Qe1
- 2.Sf3#
- 2.Sc6#
- 1...Qg1
- 2.Sf3#
- 2.Sc6#
- 1...Qh1
- 2.Sf3#
- 2.Sc6#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 1...Qd2
- 2.Sf3#
- 2.Sc6#
- 1...Rb7
- 2.Sf3#
- 2.Sc6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bxb7#
- 2.Bh7#
- 1...Ra8
- 2.Sf3#
- 2.Sc6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bb7#
- 2.Bh7#
- 2.Bxa8#
- 2.Qc7#
- 1...Bc6
- 2.Sf3#
- 2.Sxc6#
- 2.Bd5#
- 2.Bxc6#
- 1...f5
- 2.Sf3#
- 2.Sc6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bxf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rxf5#
- 1...axb2!
- threat
- 1.Sh4?
- threat
- 2.Sg6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bb7#
- 2.Bh7#
- 2.Ba8#
- 1...Sb8+
- 2.Bb7#
- 1...Sf8+
- 2.Bb7#
- 1...Qxd3
- 2.Sf3#
- 2.Sg6#
- 2.Bxd3#
- 1...axb2
- 2.Sg6#
- 1...Qe2
- 2.Sg6#
- 1...Qf3
- 2.Sxf3#
- 2.Sg6#
- 2.Bxf3#
- 1...Qh5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bb7#
- 2.Bh7#
- 2.Ba8#
- 1...Qc1
- 2.Sf3#
- 2.Sg6#
- 1...Qe1
- 2.Sf3#
- 2.Sg6#
- 1...Qg1
- 2.Sf3#
- 2.Sg6#
- 1...Qh1
- 2.Sg6#
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 1...Qd2
- 2.Sf3#
- 2.Sg6#
- 1...Rb7
- 2.Sg6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bxb7#
- 2.Bh7#
- 1...Ra8
- 2.Sg6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bf5#
- 2.Bc6#
- 2.Bg6#
- 2.Bb7#
- 2.Bh7#
- 2.Bxa8#
- 2.Qc7#
- 1...Bc6
- 2.Sg6#
- 2.Bd5#
- 2.Bxc6#
- 1...f5
- 2.Sg6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bxf5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rxf5#
- 1...Qg4!
- threat
- 1.Rxf6?
- threat
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Re6#
- 1...Sb8+
- 2.Bb7#
- 1...Sf8+
- 2.Bb7#
- 1...Qxd3
- 2.Bxd3#
- 2.Re6#
- 1...axb2
- 2.Re6#
- 1...Qe2
- 2.Re6#
- 1...Qf3
- 2.Bxf3#
- 2.Re6#
- 1...Qg4
- 2.Re6#
- 1...Qc1
- 2.Re6#
- 1...Qe1
- 2.Re6#
- 1...Qg1
- 2.Re6#
- 1...Qh1
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Re6#
- 1...Qd2
- 2.Re6#
- 1...Rb7
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bxb7#
- 2.Re6#
- 1...Ra8
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Bxa8#
- 2.Re6#
- 2.Qc7#
- 1...Bc6
- 2.Bd5#
- 2.Bxc6#
- 2.Re6#
- 1...Sxf6+!
- threat
- 1.Qb8+?
- 1...Rc7
- 2.Qxc7#
- 1...Sxb8+!
- 1...Rc7
- 1.Ke8?
- Keys
- 1.Kd8!
- threat
- 2.Re7#
- 1...Sb8+
- 2.Bd5#
- 1...Sf8+
- 2.Bd5#
- 1...Ke6
- 2.Re7#
- threat
- 1.Kd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(a);OGATE,XP(B)::R(C)+B(F),XQ(a)
- R(i);N_GUARD::QAB(J)
- R(i);N_GUARD::QAB(J),XR(i)
- S(j);CHECK::R(C)+B(F)
- Tries
- Try
- K(H);P-FLIGHT
- Threat
- R(I)
- Vars
- S(j);CHECK::R(C)+B(F)
- K(f);N_SPINR(d),P-FLIGHT,P_SPINS(j)::R1(I)
- Refutation
- Q(a);P_PINR(I)
- Try
- S(G);XR(d)
- Threat
- DUALS(12)
- Vars
- S(j);CHECK::R(C)+B(F)
- Refutation
- P(b);XB(A)
- Try
- S(G);
- Threat
- DUALS(11)
- Vars
- S(j);CHECK::R(C)+B(F)
- P(b);N_SPINR(d),XB(A)::S(G)
- Q(a);::S(G)
- Refutation
- Q(a);
- Try
- R(I);XP(h)
- Threat
- DUALS(8)
- Vars
- S(j);CHECK::R(C)+B(F)
- P(b);N_SPINR(d),XB(A)::R1(I)
- Q(a);::R1(I)
- Refutation
- S(j);CHECK,XR(I)
- Try
- Q(J);CHECK
- Vars
- R(i);N_GUARD::QAB(J),XR(i)
- Refutation
- S(j);CHECK,XQ(J)
- Try
- Actual
- K(H);S_FLIGHT
- Threat
- R(I)
- Vars
- S(j);CHECK::R(C)+B(F)
- K(f);N_SPINR(d),P-FLIGHT,P_SPINS(j)::R1(I)
Developed and maintained by Brian Stephenson.
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