MESON Chess Problem Database
Problem Display
PID: 47314 (2qkb3/2nB3p/1B2PP2/6R1/R7/1K1p4/1n4Qr/8 w - - 0 1)
Berg, Wolfgang
3rd Prize, Pituk-85 JT, 1991
#2
8 + 8
| 4827 | FIDE Album (1989-1991) | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qa8
- 2.Rxa8#
- 2.Qxa8#
- 1...Qa8
- Tries
- 1.Rd4?
- threat
- 2.e7#
- 1...Qxd7
- 2.Qa8#
- 1...Bxd7
- 2.Rg8#
- 1...Bf7!
- threat
- 1.Ra8?
- threat
- 2.Rxc8#
- 1...Qxa8
- 2.Qxa8#
- 1...Qb8
- 2.Rxb8#
- 1...Bxd7!
- threat
- 1.Qd5?
- threat
- 2.e7#
- 1...Qxd7
- 2.Ra8#
- 1...Bxd7
- 2.Rg8#
- 1...Re2!
- threat
- 1.Qa8?
- threat
- 2.Qxc8#
- 1...Qxa8
- 2.Rxa8#
- 1...Qb8
- 2.Qxb8#
- 1...Bxd7!
- threat
- 1.Rd4?
- Keys
- 1.Rd5!
- threat
- 2.e7#
- 1...Qxd7
- 2.Ra8#
- 1...Bxd7
- 2.Qg8#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(C);
- Threat
- P(F)
- Vars
- Q(f);OGATEB,P_SPINQ(f),XB(H)::QAR(A)
- B(h);OGATEB,P_SPINB(h),XB(H)::R(D)
- Refutation
- B(h);P_PINP(F)
- Try
- R(C);P_PINQ(f)
- Threat
- R1(C),XQ(f)
- Vars
- Q(f);N_SPINQ(f),OGATE,XR(C)::QAR(A),XQ(f)
- Q(f);OGATEB,P_PINB(E)::R(C),XQ(f)
- Refutation
- B(h);XB(H)
- Try
- Q(A);
- Threat
- P(F)
- Vars
- Q(f);OGATEB,P_SPINQ(f),XB(H)::R(C)
- B(h);OGATEB,P_SPINB(h),XB(H)::R(D)
- Refutation
- R(b);
- Try
- Q(A);P_PINQ(f)
- Threat
- QAR1(A),XQ(f)
- Vars
- Q(f);N_SPINQ(f),OGATE,XQ(A)::R(C),XQ(f)
- Q(f);OGATEB,P_PINB(E)::QAR2(A),XQ(f)
- Refutation
- B(h);XB(H)
- Try
- Actual
- R(D);
- Threat
- P(F)
- Vars
- Q(f);OGATEB,P_SPINQ(f),XB(H)::R(C)
- B(h);OGATEB,P_SPINB(h),XB(H)::QAR(A)
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