MESON Chess Problem Database
Problem Display
PID: 95101 (8/8/2pq3r/2PP2Rr/3kPQ2/1PN1p3/1KR2b2/5B2 w - - 0 1)
Skoba, Ivan
Pravda, 1982
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Qe5#
- 2.e5#
- 1...cxd5
- 2.Sb5#
- 1...Qxc5
- Tries
- 1.Sb1?
- threat
- 2.Rc4#
- 1...Qxc5
- 2.Qe5#
- 1...Qxd5
- 2.exd5#
- 1...cxd5
- 2.e5#
- 1...e2!
- threat
- 1.Sd1?
- threat
- 2.Rc4#
- 1...Qxc5
- 2.Qe5#
- 1...Qxd5
- 2.exd5#
- 1...cxd5
- 2.e5#
- 1...e2!
- threat
- 1.Sa2?
- threat
- 2.Rc4#
- 1...Qxc5
- 2.Qe5#
- 1...Qxd5
- 2.exd5#
- 1...cxd5
- 2.e5#
- 1...e2!
- threat
- 1.Rd2+?
- 1...exd2
- 2.Qxf2#
- 1...Kxc5!
- 1...exd2
- 1.Sb1?
- Keys
- 1.Sa4!
- threat
- 2.Rc4#
- 1...Qxc5
- 2.Qe5#
- 1...Qxd5
- 2.exd5#
- 1...cxd5
- 2.e5#
- 1...e2
- 2.Rd2#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(e);N_GUARD,XP(I)::S(E)
- Tries
- Try
- S(E);
- Threat
- R1(C)
- Vars
- Q(f);N_GUARD,XP(H)::QAB1(G)
- Q(f);OGATE,XP(I)::QAR(G)+P(F),XQ(f)
- P(e);SBLOCK,XP(I)::QAR(G)+P(F)
- Refutation
- P(b);
- Try
- S(E);
- Threat
- R1(C)
- Vars
- Q(f);N_GUARD,XP(H)::QAB1(G)
- Q(f);OGATE,XP(I)::QAR(G)+P(F),XQ(f)
- P(e);SBLOCK,XP(I)::QAR(G)+P(F)
- Refutation
- P(b);
- Try
- S(E);
- Threat
- R1(C)
- Vars
- Q(f);N_GUARD,XP(H)::QAB1(G)
- Q(f);OGATE,XP(I)::QAR(G)+P(F),XQ(f)
- P(e);SBLOCK,XP(I)::QAR(G)+P(F)
- Refutation
- P(b);
- Try
- R(C);CHECK
- Vars
- P(b);XR(C)::QAB(G),XB(a)
- Refutation
- K(c);S_FLIGHT,XP(H)
- Try
- Actual
- S(E);
- Threat
- R1(C)
- Vars
- Q(f);N_GUARD,XP(H)::QAB1(G)
- Q(f);OGATE,XP(I)::QAR(G)+P(F),XQ(f)
- P(e);SBLOCK,XP(I)::QAR(G)+P(F)
- P(b);N_GUARD::R(C)
Developed and maintained by Brian Stephenson.
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