MESON Chess Problem Database
Problem Display
PID: 84772 (8/4B3/P5n1/5qRr/k1BR1p2/PN1N3b/2K5/2Q5 w - - 0 1)
Hassberg, Eric Manfred
American Chess Problemist, 1950
#2
10 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxd3+
- 2.Bxd3#
- 1...Qe4
- 2.Bb5#
- 1...Qg4
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qe6
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Bxe6#
- 1...Qd7
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 1...Qc8
- 2.Sb2#
- 1...Qa5
- 2.Sb2#
- 2.Bb5#
- 1...Qb5
- 2.Sb2#
- 2.Bxb5#
- 1...Qc5
- 2.Sdxc5#
- 1...Qd5
- 2.Sb2#
- 1...Qe5
- 2.Sb2#
- 1...Qxg5
- 2.Sb2#
- 1...Qf6
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 1...Qf7
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Be6#
- 2.Bxf7#
- 1...Qf8
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qxd3+
- Tries
- 1.Sc5+?
- 1...Ka5
- 2.Bd8#
- 1...Qxc5!
- 1...Ka5
- 1.Rd5?
- threat
- 2.Bb5#
- 1...Qxd5
- 2.Sb2#
- 1...Qd7
- 2.Sb2#
- 2.Sdc5#
- 2.Ra5#
- 1...Qc8
- 2.Sb2#
- 2.Ra5#
- 1...Qxd3+!
- threat
- 1.Rxf5?
- threat
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Rxf5
- 2.Sb2#
- 1...Sxe7
- 2.Sdc5#
- 2.Bb5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Se5
- 2.Sb2#
- 2.Sdc5#
- 1...Bxf5!
- threat
- 1.Qd2?
- threat
- 2.Qb4#
- 1...Qxd3+
- 2.Bxd3#
- 1...Qa5
- 2.Sb2#
- 2.Bb5#
- 2.Qxa5#
- 1...Qb5
- 2.Sb2#
- 2.Bxb5#
- 1...Qc5!
- threat
- 1.Qe1?
- threat
- 2.Qb4#
- 1...Qxd3+
- 2.Bxd3#
- 1...Qa5
- 2.Sb2#
- 2.Bb5#
- 2.Qxa5#
- 1...Qb5
- 2.Sb2#
- 2.Bxb5#
- 1...Qc5!
- threat
- 1.Sc5+?
- Keys
- 1.a7!
- threat
- 2.Ba6#
- 1...Qxd3+
- 2.Bxd3#
- 1...Qe4
- 2.Bb5#
- 1...Qe6
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Bxe6#
- 1...Qd7
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 1...Qc8
- 2.Sb2#
- 1...Qa5
- 2.Sb2#
- 2.Bb5#
- 1...Qb5
- 2.Sb2#
- 2.Bxb5#
- 1...Qc5
- 2.Sdxc5#
- 1...Qd5
- 2.Sb2#
- 1...Qe5
- 2.Sb2#
- 1...Qf6
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 1...Qf7
- 2.Sb2#
- 2.Sdc5#
- 2.Bb5#
- 2.Be6#
- 2.Bxf7#
- 2.a8Q#
- 2.a8R#
- 1...Se5
- 2.a8Q#
- 2.a8R#
- threat
- 1.a7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- Q(d);CHECK,OGATE,XS(E)::R(G)+B(F),XQ(d)
- Q(d);::R(G)+B(F),DCHECK
- Q(d);N_PINS(E),P_PINB(F)::S(E)
- Q(d);N_PINS(E),P_PINB(F)::S(E),XQ(d)
- Q(d);N_PINS(E)::S(E)
- Q(d);N_PINS(E),XR(H)::S(E)
- Tries
- Try
- S(D);CHECK
- Vars
- K(b);P-FLIGHT::B(J)
- Refutation
- Q(d);N_PINS(E),P_PINB(F),XS(D)
- Try
- R(G);
- Threat
- B(F)
- Vars
- Q(d);N_PINS(E),XR(G)::S(E)
- Refutation
- Q(d);CHECK,XS(E)
- Try
- R(H);N_SPINS(E),XQ(d)
- Threat
- DUALS(6)
- Vars
- R(e);XR(H)::S(E)
- Refutation
- B(a);P_PINS(E),XR(H)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- Q(d);CHECK,OGATE,XS(E)::R(G)+B(F),XQ(d)
- Refutation
- Q(d);N_PINS(E),P_PINB(F)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- Q(d);CHECK,OGATE,XS(E)::R(G)+B(F),XQ(d)
- Refutation
- Q(d);N_PINS(E),P_PINB(F)
- Try
- Actual
- P(I);
- Threat
- R(G)+B(F)
- Vars
- Q(d);CHECK,OGATE,XS(E)::R(G)+B(F),XQ(d)
- Q(d);::R(G)+B(F),DCHECK
- Q(d);N_PINS(E),P_PINB(F)::S(E)
- Q(d);N_PINS(E),P_PINB(F)::S(E),XQ(d)
- Q(d);N_PINS(E)::S(E)
- S(f);S_CUTQ(d)::P=Q
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