MESON Chess Problem Database
Problem Display
PID: 260941 (4N3/4p3/4Q3/3pbp2/2ppkpp1/2PR1RP1/1B5P/4K3 w - - 0 1)
Machler, Emil
Neue Zurcher Zeitung, 1988
#2
9 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...dxc3
- 2.Qxd5#
- 1...fxg3
- 2.Qxf5#
- 1...dxc3
- Tries
- 1.Kd2?
- threat
- 2.Rxf4#
- 1...fxg3
- 2.Qxf5#
- 1...gxf3
- 2.Rxd4#
- 1...dxc3+!
- threat
- 1.Kf2?
- threat
- 2.Rxd4#
- 1...cxd3
- 2.Rxf4#
- 1...dxc3
- 2.Qxd5#
- 1...fxg3+!
- threat
- 1.Rde3+?
- 1...fxe3
- 2.Qxf5#
- 1...dxe3!
- 1...fxe3
- 1.Rfe3+?
- 1...dxe3
- 2.Qxd5#
- 1...fxe3!
- 1...dxe3
- 1.Kd2?
- Keys
- 1.Bc1!
- 1...cxd3
- 2.Rxf4#
- 1...dxc3
- 2.Qxd5#
- 1...fxg3
- 2.Qxf5#
- 1...gxf3
- 2.Rxd4#
- 1...cxd3
- 1.Bc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(b);XP(D)::QAB1(H),XP(f)
- P(d);XP(G)::QAB1(H),XP(h)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- R1(F),XP(d)
- Vars
- P(d);XP(G)::QAB1(H),XP(h)
- P(e);SBLOCK,XR(F)::R1(E),XP(b)
- Refutation
- P(b);CHECK,XP(D)
- Try
- K(A);S_FLIGHT
- Threat
- R1(E),XP(b)
- Vars
- P(a);SBLOCK,XR(E)::R1(F),XP(d)
- P(b);XP(D)::QAB1(H),XP(f)
- Refutation
- P(d);CHECK,XP(G)
- Try
- R(E);CHECK
- Vars
- P(d);XR(E)::QAB1(H),XP(h)
- Refutation
- P(b);XR(E)
- Try
- R(F);CHECK
- Vars
- P(b);XR(F)::QAB1(H),XP(f)
- Refutation
- P(d);XR(F)
- Try
- Actual
- B(B);
- Vars
- P(a);SBLOCK,XR(E)::R1(F),XP(d)
- P(b);XP(D)::QAB1(H),XP(f)
- P(d);XP(G)::QAB1(H),XP(h)
- P(e);SBLOCK,XR(F)::R1(E),XP(b)
Developed and maintained by Brian Stephenson.
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