MESON Chess Problem Database
Problem Display
PID: 141227 (8/B1Q1N3/8/3Npp2/1p2k3/1K2n2R/8/3n4 w - - 0 1)
Boswell, Edward
Western Morning News and Mercury, 1928
(First published on Sat Aug 11 1928)
#2
6 + 6
| 14868 | Pirnie Collection | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qc2#
- 1...Sb2
- 2.Rxe3#
- 1...Sf2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sf1
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Qxc2#
- 1...Sg2
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc2#
- 2.Qc4#
- 1...Sxd5
- 2.Qc4#
- 1...Kd3
- Tries
- 1.Sf6+?
- 1...Kd3
- 2.Qc2#
- 1...Kf4!
- 1...Kd3
- 1.Bb6?
- 1...Kd3
- 2.Qc2#
- 1...Sxd5
- 2.Qc4#
- 1...Sb2
- 2.Rxe3#
- 1...Sf2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sf1
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Qxc2#
- 1...Sg2
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc2#
- 2.Qc4#
- 1...f4!
- 1...Kd3
- 1.Rg3?
- 1...Kd3
- 2.Qc2#
- 1...Sxd5
- 2.Qc4#
- 1...Sb2
- 2.Rxe3#
- 1...Sf2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sf1
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Qxc2#
- 1...Sg2
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc2#
- 2.Qc4#
- 1...f4!
- 1...Kd3
- 1.Qc1?
- 1...Kd3
- 2.Qc2#
- 1...Sxd5
- 2.Qc4#
- 1...Sb2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sf2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sc3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sf1
- 2.Sf6#
- 2.Qb1#
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Sf6#
- 2.Qxc2#
- 1...Sg2
- 2.Sf6#
- 2.Qb1#
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Sf6#
- 2.Qb1#
- 2.Qc2#
- 2.Qxc4#
- 1...Sg4
- 2.Qb1#
- 2.Qc2#
- 2.Qc4#
- 1...f4!
- 1...Kd3
- 1.Qc3?
- 1...Sxc3
- 2.Rxe3#
- 1...Sxd5
- 2.Qf3#
- 2.Qc4#
- 1...f4
- 2.Sf6#
- 1...Sb2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sf2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sf1
- 2.Qxb4#
- 2.Qc2#
- 2.Qd3#
- 2.Qf3#
- 2.Qc4#
- 1...Sc2
- 2.Qxc2#
- 2.Qd3#
- 2.Qf3#
- 1...Sg2
- 2.Qxb4#
- 2.Qc2#
- 2.Qd3#
- 2.Qf3#
- 2.Qc4#
- 1...Sc4
- 2.Qc2#
- 2.Qd3#
- 2.Qf3#
- 2.Qxc4#
- 1...Sg4
- 2.Qxb4#
- 2.Qc2#
- 2.Qd3#
- 2.Qf3#
- 2.Qc4#
- 1...bxc3!
- 1...Sxc3
- 1.Qc5?
- 1...Kd3
- 2.Qc2#
- 1...Sxd5
- 2.Qc4#
- 1...Sb2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sf2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sc3
- 2.Rxe3#
- 2.Qxe3#
- 1...Sf1
- 2.Qxb4#
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Qxc2#
- 1...Sg2
- 2.Qxb4#
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qxb4#
- 2.Qc2#
- 2.Qc4#
- 1...f4!
- 1...Kd3
- 1.Qc6?
- 1...Kd3
- 2.Qc2#
- 1...Sxd5
- 2.Qc4#
- 1...Sb2
- 2.Rxe3#
- 1...Sf2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sf1
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Qxc2#
- 1...Sg2
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc2#
- 2.Qc4#
- 1...f4!
- 1...Kd3
- 1.Qc8?
- 1...Kd3
- 2.Qc2#
- 1...Sxd5
- 2.Qxf5#
- 2.Qc4#
- 1...Sb2
- 2.Rxe3#
- 1...Sf2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sf1
- 2.Qxf5#
- 2.Qc2#
- 2.Qc4#
- 1...Sc2
- 2.Qxf5#
- 2.Qxc2#
- 1...Sg2
- 2.Qxf5#
- 2.Qc2#
- 2.Qc4#
- 1...Sc4
- 2.Qxf5#
- 2.Qxc4#
- 1...Sg4
- 2.Qxf5#
- 2.Qc2#
- 2.Qc4#
- 1...f4!
- 1...Kd3
- 1.Sf6+?
- Keys
- 1.Qd7!
- 1...Kd3
- 2.Sc3#
- 1...Sxd5
- 2.Qxf5#
- 1...f4
- 2.Sf6#
- 1...Sb2
- 2.Rxe3#
- 1...Sf2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sf1
- 2.Qxf5#
- 1...Sc2
- 2.Qxf5#
- 1...Sg2
- 2.Qxf5#
- 1...Sc4
- 2.Qxf5#
- 1...Sg4
- 2.Qxf5#
- 1...Kd3
- 1.Qd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(a);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAR2(E),XS(b)
- S(b);N_GUARD,XS(C)::QAR2(E)
- Tries
- Try
- S(C);CHECK
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(e)
- Try
- B(D);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(b);N_GUARD,XS(C)::QAR2(E)
- S(a);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAR2(E),XS(b)
- Refutation
- P(f);
- Try
- R(B);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(b);N_GUARD,XS(C)::QAR2(E)
- S(a);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAR2(E),XS(b)
- Refutation
- P(f);
- Try
- Q(E);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(b);N_GUARD,XS(C)::QAR2(E)
- Refutation
- P(f);
- Try
- Q(E);
- Vars
- S(a);N_GUARD,XQ(E)::R1(B),XS(b)
- P(f);SBLOCK::S(C)
- Refutation
- P(c);XQ(E)
- Try
- Q(E);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(b);N_GUARD,XS(C)::QAR2(E)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAR2(E),XS(b)
- Refutation
- P(f);
- Try
- Q(E);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(b);N_GUARD,P_SPINS(b),XS(C)::QAR2(E)
- S(a);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::QAB(E),XS(b)
- S(b);N_GUARD::QAR2(E),XS(b)
- Refutation
- P(f);
- Try
- Q(E);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAB1(E)
- S(a);N_GUARD::R1(B),XS(b)
- Refutation
- P(f);
- Try
- Actual
- Q(E);
- Vars
- K(d);P_SPINS(b),S_FLIGHT::QAR(E)+S(C)
- S(b);N_GUARD,XS(C)::QAB1(E),XP(f)
- P(f);SBLOCK::S(C)
- S(a);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::QAB1(E),XP(f)
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