MESON Chess Problem Database
Problem Display
PID: 174993 (2bQ4/2p4N/p1P1p2N/R2n4/4Pk2/4R2n/6Br/K5B1 w - - 0 1)
McAllister, George W
Philadelphia Times, 1901
#2
10 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sxg1
- 2.Qg5#
- 1...Sf2
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 1...Sc3
- 2.Qh4#
- 2.Qf6#
- 2.Qf8#
- 1...Sxe3
- 2.Bxh2#
- 1...Sb4
- 2.Qh4#
- 2.Qf6#
- 2.Qf8#
- 1...Sb6
- 2.Qh4#
- 2.Qf6#
- 2.Qf8#
- 1...Sf6
- 2.Qxf6#
- 1...Sxg1
- Tries
- 1.Rxh3?
- threat
- 2.Bxh2#
- 2.Qg5#
- 1...Ke5
- 2.Qxc7#
- 1...Rxh3
- 2.Qg5#
- 1...Rh1
- 2.Qg5#
- 1...Sf6
- 2.Bxh2#
- 2.Be3#
- 2.Qxf6#
- 2.Qd2#
- 1...Se7
- 2.Bxh2#
- 2.Be3#
- 2.Qd2#
- 1...Rxg2!
- threat
- 1.Rxd5?
- threat
- 2.Qh4#
- 2.Qf6#
- 2.Qf8#
- 1...Rxg2
- 2.Qf6#
- 2.Qf8#
- 1...Sxg1
- 2.Qg5#
- 1...exd5
- 2.Qxc7#
- 1...Sf2
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 2.Qf6#
- 1...e5!
- threat
- 1.Qxd5?
- threat
- 2.Rf3#
- 2.Qe5#
- 1...Rxg2
- 2.Qe5#
- 1...Sxg1
- 2.Qg5#
- 1...Sf2
- 2.Rf3#
- 2.Qg5#
- 1...Sg5
- 2.Qe5#
- 2.Qxg5#
- 1...e5
- 2.Rf3#
- 2.Qxe5#
- 1...exd5!
- threat
- 1.Qf8+?
- 1...Sf6
- 2.Qxf6#
- 1...Ke5!
- 1...Sf6
- 1.exd5?
- threat
- 2.Ra4#
- 2.Qh4#
- 2.Qf6#
- 2.Qf8#
- 1...Rxg2
- 2.Ra4#
- 2.Qf6#
- 2.Qf8#
- 1...Sxg1
- 2.Qg5#
- 1...exd5
- 2.Qxc7#
- 1...Sf2
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 2.Qf6#
- 1...e5!
- threat
- 1.e5?
- threat
- 2.Qh4#
- 1...Sxg1
- 2.Qg5#
- 1...Sxe3
- 2.Bxh2#
- 1...Sf2
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Se7
- 2.Ra4#
- 2.Qd4#
- 1...Rxg2!
- threat
- 1.Rxh3?
- Keys
- 1.Ra4!
- threat
- 2.exd5#
- 1...Ke5
- 2.exd5#
- 1...Sxg1
- 2.Qg5#
- 1...Sxe3
- 2.Bxh2#
- 1...Sf2
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 1...Sc3
- 2.Qf6#
- 1...Sb4
- 2.Qf6#
- 1...Sb6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Se7
- 2.e5#
- 1...e5
- 2.Rf3#
- threat
- 1.Ra4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD,XB(B)::QAB1(J)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(d);SBLOCK,XR(D)::B(B),XR(a)
- S(d);N_GUARD::QAR2(J),XS(d)
- Tries
- Try
- R(D);XS(b)
- Threat
- DUALS(2)
- Vars
- K(c);P_SPINS(d),S_FLIGHT::QAB(J),XP(g)
- R(a);XR(D)::QAB1(J)
- R(a);P_PINB(B)::QAB1(J)
- Refutation
- R(a);XB(C)
- Try
- R(F);XS(d)
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD,XB(B)::QAB1(J)
- P(f);N_GUARD,XR(F)::QAB(J),XP(g)
- S(b);N_GUARD::QAB1(J)
- Refutation
- P(f);
- Try
- Q(J);XS(d)
- Threat
- DUALS(2)
- Vars
- R(a);XB(C)::QAB1(J)
- S(b);N_GUARD,XB(B)::QAB1(J)
- Refutation
- P(f);XQ(J)
- Try
- Q(J);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAR2(J),XS(d)
- Refutation
- K(c);P_SPINS(d),S_FLIGHT
- Try
- P(E);XS(d)
- Threat
- DUALS(4)
- Vars
- S(b);N_GUARD,XB(B)::QAB1(J)
- P(f);N_GUARD,XP(E)::QAB(J),XP(g)
- S(b);N_GUARD::QAB1(J)
- Refutation
- P(f);
- Try
- P(E);
- Threat
- QAR2(J)
- Vars
- S(b);N_GUARD,XB(B)::QAB1(J)
- S(d);SBLOCK,XR(D)::B(B),XR(a)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(d);N_GUARD::QAR2(J),XS(d)
- Refutation
- R(a);XB(C)
- Try
- Actual
- R(F);
- Threat
- R(F)+P(E),XS(d)
- Vars
- K(c);S_FLIGHT::R(D)+P(E),XS(d)
- S(b);N_GUARD,XB(B)::QAB1(J)
- S(d);SBLOCK,XR(D)::B(B),XR(a)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(d);N_GUARD::QAR2(J)
- S(d);N_GUARD::QAR2(J),XS(d)
- S(d);N_GUARD::R(F)+P(E)
- P(f);SBLOCK::R1(D)
Developed and maintained by Brian Stephenson.
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