MESON Chess Problem Database
Problem Display
PID: 134354 (3R4/Kp2Bp1n/6b1/2N1k3/1N2P1B1/p1P2RP1/r1Q5/1nbq3r w - - 0 1)
Shire, David J
Comm., The Problemist, 2009
#2
11 + 11
| 56 | The Problemist | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Qxc2
- 2.Bd6#
- 2.Rd5#
- 1...Qe2
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Qxf3
- 2.Sd7#
- 2.Rd5#
- 1...Qe1
- 2.Sbd3#
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Qf1
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Qg1
- 2.Sd3#
- 2.Bd6#
- 2.Rd5#
- 1...Qd3
- 2.Sbxd3#
- 1...Qd4
- 2.cxd4#
- 1...Qd5
- 2.Rxd5#
- 1...Qd6
- 2.Bxd6#
- 1...Qd7
- 2.Sxd7#
- 1...Bd2
- 2.Sbd3#
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Bf4
- 2.gxf4#
- 1...Bxe4
- 2.Qxe4#
- 1...Bf5
- 2.Rxf5#
- 1...Bh5
- 2.Rf5#
- 1...Sd2
- 2.Sbd3#
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Sg5
- 2.Bf6#
- 1...Sf6
- 2.Bxf6#
- 1...Sf8
- 2.Bf6#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Qxc2
- Tries
- 1.Kxb7?
- threat
- 2.Sc6#
- 1...Qd5+
- 2.Rxd5#
- 1...Qd7+
- 2.Sxd7#
- 1...Bxe4+
- 2.Qxe4#
- 1...Qd6
- 2.Bxd6#
- 1...Rb2!
- threat
- 1.Sd5?
- threat
- 2.Sd7#
- 2.Bd6#
- 1...Qxc2
- 2.Bd6#
- 1...Qxd5
- 2.Rxd5#
- 1...Rxc2
- 2.Bd6#
- 1...Bxe4
- 2.Qxe4#
- 1...Qg1
- 2.Bd6#
- 1...Qd3
- 2.Bd6#
- 1...Qd4
- 2.Bd6#
- 1...Be3
- 2.Bd6#
- 1...Bf5
- 2.Bd6#
- 2.Rxf5#
- 1...Sf6
- 2.Bd6#
- 2.Bxf6#
- 1...Sf8
- 2.Bd6#
- 2.Bf6#
- 1...f5
- 2.Bd6#
- 1...Sxc3!
- threat
- 1.Scd3+?
- 1...Kxe4
- 2.Rd4#
- 1...Qxd3!
- 1...Kxe4
- 1.Rxd1?
- threat
- 2.Sbd3#
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Rxc2
- 2.Sbd3#
- 2.Bd6#
- 2.Rd5#
- 1...Bxe4
- 2.Sd7#
- 2.Bd6#
- 2.Qxe4#
- 1...Sxc3
- 2.Sd7#
- 2.Bd6#
- 2.Qxc3#
- 1...Bd2
- 2.Sbd3#
- 2.Sd7#
- 1...Be3
- 2.Sd3#
- 2.Bd6#
- 2.Rd5#
- 1...Bf4
- 2.Sbd3#
- 2.Sd7#
- 2.Rd5#
- 2.gxf4#
- 1...Bf5
- 2.Sbd3#
- 2.Rd5#
- 2.Rxf5#
- 1...Sd2
- 2.Sbd3#
- 2.Sd7#
- 1...Sf6
- 2.Sbd3#
- 2.Bd6#
- 2.Bxf6#
- 1...Sf8
- 2.Sbd3#
- 2.Bd6#
- 2.Bf6#
- 2.Rd5#
- 1...f5
- 2.Sbd3#
- 2.Rd5#
- 1...Rxd1!
- threat
- 1.Rd2?
- threat
- 2.Sbd3#
- 2.Sd7#
- 2.Bd6#
- 1...Qxc2
- 2.Bd6#
- 2.Rd5#
- 1...Qxf3
- 2.Sd7#
- 2.Rd5#
- 1...Rxc2
- 2.Sbd3#
- 2.Bd6#
- 1...Bxd2
- 2.Sbd3#
- 2.Sd7#
- 1...Bxe4
- 2.Sd7#
- 2.Bd6#
- 2.Qxe4#
- 1...Sxd2
- 2.Sbd3#
- 2.Sd7#
- 1...Sxc3
- 2.Sd7#
- 2.Bd6#
- 2.Qxc3#
- 1...Qe2
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Qf1
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Qg1
- 2.Sd3#
- 2.Bd6#
- 2.Rd5#
- 1...Bf5
- 2.Sbd3#
- 2.Rxf5#
- 1...Sf6
- 2.Sbd3#
- 2.Bd6#
- 2.Bxf6#
- 1...Sf8
- 2.Sbd3#
- 2.Bd6#
- 2.Bf6#
- 1...f5
- 2.Sbd3#
- 1...Qxd2!
- threat
- 1.Rdd3?
- threat
- 2.Bd6#
- 1...Qxf3
- 2.Rd5#
- 1...Qxd3
- 2.Sbxd3#
- 1...Bf4
- 2.gxf4#
- 1...Bf5
- 2.Rxf5#
- 1...f5!
- threat
- 1.Qd3?
- threat
- 2.Sd7#
- 2.Bd6#
- 2.Rd5#
- 1...Qxf3
- 2.Sd7#
- 2.Rd5#
- 2.Qd4#
- 2.Qd5#
- 2.Qd6#
- 1...Qxd3
- 2.Sbxd3#
- 1...Bxe4
- 2.Sd7#
- 2.Bd6#
- 2.Qxe4#
- 1...Sxc3
- 2.Sd7#
- 2.Bd6#
- 1...Qb3
- 2.Sd7#
- 2.Bd6#
- 2.Qd4#
- 2.Qd6#
- 1...Qg1
- 2.Bd6#
- 2.Rd5#
- 2.Qd5#
- 2.Qd6#
- 1...Be3
- 2.Bd6#
- 2.Rd5#
- 1...Bf4
- 2.Sd7#
- 2.Rd5#
- 2.gxf4#
- 1...Bf5
- 2.Rxf5#
- 2.Rd5#
- 1...Sf6
- 2.Bd6#
- 2.Bxf6#
- 1...Sf8
- 2.Bd6#
- 2.Bf6#
- 2.Rd5#
- 1...f5
- 2.Rd5#
- 1...Qa4+!
- threat
- 1.Kxb7?
- Keys
- 1.Rfd3!
- threat
- 2.R8d5#
- 1...Qxd3
- 2.Sbxd3#
- 1...Bxe4
- 2.Sd7#
- 1...Sxc3
- 2.Qxc3#
- 1...Sf6
- 2.Bd6#
- threat
- 1.Rfd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(c);N_GUARD::S(E),XQ(c)
- Q(c);OGATE,P_PINS(H)::P(B),XQ(c)
- Q(c);N_GUARD::R1(K),XQ(c)
- Q(c);N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::S(H),XQ(c)
- B(b);OGATE::P(D),XB(b)
- B(h);OGATE,XP(F)::QAR1(A),XB(h)
- B(h);N_GUARD::R1(C),XB(h)
- B(h);N_GUARD::R1(C)
- S(k);N_GUARD::B(J)
- S(k);N_GUARD::B(J),XS(k)
- P(i);N_GUARD::S(E)
- Tries
- Try
- K(I);P-FLIGHT,XP(i)
- Threat
- S(E)
- Vars
- Q(c);CHECK,N_GUARD::R1(K),XQ(c)
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- B(h);CHECK,OGATE,XP(F)::QAR1(A),XB(h)
- Q(c);N_GUARD::B(J),XQ(c)
- Refutation
- R(e);P_PINS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(c);XQ(A)::B(J)
- Q(c);OGATE,XS(E)::R1(K),XQ(c)
- R(e);XQ(A)::B(J)
- B(h);OGATE,XP(F)::QAR1(A),XB(h)
- Q(c);P_PINS(H)::B(J)
- Q(c);::B(J)
- B(b);P_PINS(H)::B(J)
- P(j);::B(J)
- Refutation
- S(a);XP(B)
- Try
- S(H);CHECK
- Vars
- K(g);P-FLIGHT,XP(F)::R1(K)
- Refutation
- Q(c);XS(H)
- Try
- R(K);XQ(c)
- Threat
- DUALS(4)
- Refutation
- R(d);XR(K)
- Try
- R(K);
- Threat
- DUALS(3)
- Vars
- P(j);::S(E)
- Refutation
- Q(c);XR(K)
- Try
- R(K);
- Threat
- B(J)
- Vars
- Q(c);N_GUARD,XR(C)::R1(K)
- Q(c);XR(K)::S(E),XQ(c)
- B(b);OGATE::P(D),XB(b)
- B(h);N_GUARD::R1(C),XB(h)
- Refutation
- P(j);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(c);XQ(A)::S(E),XQ(c)
- P(j);::R1(K)
- Refutation
- Q(c);CHECK
- Try
- Actual
- R(C);
- Threat
- R1(K)
- Vars
- Q(c);XR(C)::S(E),XQ(c)
- B(h);SBLOCK,XP(F)::S(H)
- S(a);OGATE,XP(B)::QAB(A),XS(a)
- S(k);SBLOCK::B(J)
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