MESON Chess Problem Database
Problem Display
PID: 79718 (k1r3bR/2PNR3/1K2NQ2/2P5/6p1/4p2p/p3n3/6b1 w - - 0 1)
Morse, Christopher Jeremy
The Problemist Supplement, 2008
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxc7
- 2.Sxc7#
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 1...Rf8
- 2.Qxf8#
- 1...Bxe6
- 2.Rxc8#
- 1...Bf7
- 2.Rxc8#
- 1...Bh7
- 2.Rxc8#
- 1...a1Q
- 2.Qxa1#
- 1...a1S
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...a1R
- 2.Qxa1#
- 1...g3
- 2.Qf3#
- 1...Rxc7
- Tries
- 1.Re8?
- threat
- 2.Rxc8#
- 1...Rb8+
- 2.Rxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Rxd8#
- 2.Qxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxe8!
- threat
- 1.Rxg8?
- threat
- 2.Rxc8#
- 1...Rb8+
- 2.Rxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Rxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rexe8#
- 2.Rgxe8#
- 1...Rf8
- 2.Rxf8#
- 2.Qxf8#
- 1...Rxg8!
- threat
- 1.Qb2?
- threat
- 2.Qa3#
- 2.Qxa2#
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxc7
- 2.Sxc7#
- 1...Bxe6
- 2.Rxc8#
- 2.Qa3#
- 1...a1Q
- 2.Qxa1#
- 1...a1S
- 2.Qxa1#
- 2.Qa3#
- 2.Qa2#
- 1...a1B
- 2.Qxa1#
- 2.Qa3#
- 2.Qa2#
- 1...a1R
- 2.Qxa1#
- 1...Sc1
- 2.Qa3#
- 1...Sc3!
- threat
- 1.Qc3?
- threat
- 2.Qa5#
- 2.Qa3#
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxc7
- 2.Sxc7#
- 1...a1Q
- 2.Qxa1#
- 1...a1R
- 2.Qxa1#
- 1...Sxc3!
- threat
- 1.Qf8?
- threat
- 2.Qxc8#
- 1...Rb8+
- 2.Qxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Qxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 2.Qxe8#
- 1...Rxf8!
- threat
- 1.Re8?
- Keys
- 1.Qf1!
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxc7
- 2.Sxc7#
- 1...Bxe6
- 2.Rxc8#
- 1...a1Q
- 2.Qxa1#
- 1...a1S
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...a1R
- 2.Qxa1#
- 1...Sd4
- 2.Qa6#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 1...Rf8
- 2.Qxf8#
- 1...Bf2
- 2.Qh1#
- 1...Bh2
- 2.Qh1#
- 1...Bf7
- 2.Rxc8#
- 1...Bh7
- 2.Rxc8#
- 1...Sc1
- 2.Qa6#
- 1...Sc3
- 2.Qa6#
- 1...Sg3
- 2.Qa6#
- 1...Sf4
- 2.Qa6#
- 1...h2
- 2.Qg2#
- 1...g3
- 2.Qf3#
- 1...Rb8+
- 1.Qf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(h);P_SPINB(i),XP(E)::S(C),XR(h)
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);OGATE::PXR(h)=Q
- R(h);OGATEB::R(G),XR(h)
- R(h);OGATEB::QAR(D),XR(h)
- B(i);OGATE,P_SPINR(h),XS(C)::R(H),XR(h)
- B(i);OGATE,P_SPINR(h)::R(H),XR(h)
- P(b);OGATEB::QAB(D),XQ(b)
- P(b);OGATEB::QAB(D),XS(b)
- P(b);OGATEB::QAB(D),XB(b)
- P(b);OGATEB::QAB(D),XR(b)
- P(f);N_GUARD::QAB(D)
- Tries
- Try
- R(G);P_PINR(h)
- Threat
- R(G),XR(h)
- Refutation
- R(h);N_SPINR(h),XR(G)
- Try
- R(H);P_PINR(h),XB(i)
- Threat
- R(H),XR(h)
- Refutation
- R(h);N_SPINR(h),XR(H)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);P_SPINB(i),XP(E)::S(C),XR(h)
- P(b);OGATEB::QAB(D),XQ(b)
- P(b);OGATEB::QAB(D),XR(b)
- S(c);::QAR(D)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);P_SPINB(i),XP(E)::S(C),XR(h)
- P(b);OGATEB::QAB(D),XQ(b)
- P(b);OGATEB::QAB(D),XR(b)
- Refutation
- S(c);XQ(D)
- Try
- Q(D);P_PINR(h)
- Threat
- QAR2(D),XR(h)
- Refutation
- R(h);N_SPINR(h),XQ(D)
- Try
- Actual
- Q(D);
- Vars
- R(h);CHECK,OGATE::PXR(h)=Q
- R(h);P_SPINB(i),XP(E)::S(C),XR(h)
- B(i);OGATE,P_SPINR(h),XS(C)::R(H),XR(h)
- P(b);OGATEB::QAB(D),XQ(b)
- P(b);OGATEB::QAB(D),XS(b)
- P(b);OGATEB::QAB(D),XB(b)
- P(b);OGATEB::QAB(D),XR(b)
- S(c);OGATE::QAR2(D)
- R(h);OGATE::PXR(h)=Q
- R(h);OGATEB::R(G),XR(h)
- R(h);OGATEB::QAR(D),XR(h)
- B(a);OGATE::QAB(D)
- B(i);OGATE,P_SPINR(h)::R(H),XR(h)
- P(e);N_GUARD::QAB(D)
- P(f);N_GUARD::QAB(D)
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