MESON Chess Problem Database
Problem Display
PID: 264236 (4b3/3rN3/1B4pp/5Qp1/1R1r3k/3p3p/5P1N/3B2K1 w - - 0 1)
Labsky, Viktor
Prace, 1966
#2
8 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rg4+
- 2.Qxg4#
- 1...gxf5
- 2.Sxf5#
- 1...h5
- 2.Sf3#
- 1...Rg4+
- Tries
- 1.Bg4?
- threat
- 2.Sf3#
- 1...Rxg4+
- 2.Qxg4#
- 1...gxf5
- 2.Sxf5#
- 1...Rf4!
- threat
- 1.Bxd4?
- threat
- 2.Qg4#
- 1...gxf5
- 2.Sxf5#
- 1...g4
- 2.Qxg4#
- 1...h5
- 2.Sf3#
- 1...Rxd4!
- threat
- 1.Rxd4+?
- 1...g4
- 2.Sf3#
- 2.Rxg4#
- 2.Qxg4#
- 1...Rxd4!
- 1...g4
- 1.Qf3?
- threat
- 2.Qg3#
- 1...Rg4+
- 2.Qxg4#
- 1...g4!
- threat
- 1.Bg4?
- Keys
- 1.f4!
- threat
- 2.Qg4#
- 1...Kg3
- 2.Qg4#
- 1...Rxf4
- 2.Bf2#
- 1...gxf5
- 2.Sxf5#
- 1...g4
- 2.Qxg4#
- 1...h5
- 2.Qxg5#
- threat
- 1.f4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(c);CHECK,N_GUARD::QAR1(F),XR(c)
- P(f);XQ(F)::S(H),XP(f)
- P(g);SBLOCK::S(D)
- Tries
- Try
- B(A);N_PINR(c)
- Threat
- S(D)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XB(A)::QAR1(F),XR(c)
- P(f);XQ(F)::S(H),XP(f)
- Refutation
- R(c);
- Try
- B(G);XR(c)
- Threat
- QAR1(F)
- Vars
- P(f);XQ(F)::S(H),XP(f)
- P(e);::QAR1(F),XP(e)
- P(g);SBLOCK::S(D)
- Refutation
- R(h);P_SPINR(h),XB(G)
- Try
- R(E);CHECK,XR(c)
- Refutation
- R(h);XR(E)
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- R(c);CHECK,N_GUARD::QAR1(F),XR(c)
- Refutation
- P(e);N_SPINR(c)
- Try
- Actual
- P(C);N_PINR(c)
- Threat
- QAR1(F)
- Vars
- K(d);S_FLIGHT::QAR1(F)
- R(c);OGATE,P_SPINR(c),XP(C)::B(G)
- P(f);XQ(F)::S(H),XP(f)
- P(e);::QAR1(F),XP(e)
- P(g);N_GUARD::QAB1(F),XP(e)
Developed and maintained by Brian Stephenson.
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