MESON Chess Problem Database
Problem Display
PID: 91039 (8/1Qp2K2/3N4/3PkN2/R2p1p1R/8/4P3/8 w - - 0 1)
Michel, Francois
Die Schwalbe, 1963
#2
8 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...d3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...d3
- Tries
- 1.Sc4+?
- 1...Ke4
- 2.Sg3#
- 1...Kxf5!
- 1...Ke4
- 1.Rxd4?
- threat
- 2.Re4#
- 1...c6
- 2.Qe7#
- 1...cxd6!
- threat
- 1.Ra5?
- 1...d3
- 2.Qb2#
- 1...f3
- 2.Re4#
- 1...c5
- 2.dxc5 ep#
- 1...c6
- 2.Qe7#
- 2.dxc6#
- 1...cxd6!
- 1...d3
- 1.Qc6?
- 1...d3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...cxd6!
- 1...d3
- 1.Qb5?
- 1...c5
- 2.dxc5 ep#
- 1...d3
- 2.Re4#
- 1...f3
- 2.Re4#
- 1...c6
- 2.dxc6#
- 1...cxd6!
- 1...c5
- 1.Sc4+?
- Keys
- 1.e4!
- 1...cxd6
- 2.Qe7#
- 1...dxe4 ep
- 2.Re4#
- 1...fxe4 ep
- 2.Re4#
- 1...d3
- 2.Qb2#
- 1...f3
- 2.Sc4#
- 1...c5
- 2.Qe7#
- 1...c6
- 2.Qe7#
- 1...cxd6
- 1.e4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- P(a);OGATE::R1(B)
- P(b);OGATE::R1(C)
- Tries
- Try
- S(F);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINP(b)::S(E)
- Refutation
- K(c);P-FLIGHT,XS(E)
- Try
- R(B);XP(a)
- Threat
- R1(B)
- Vars
- P(d);OGATE::QAR2(G)
- Refutation
- P(d);XS(F)
- Try
- R(B);
- Vars
- P(a);OGATEB::QAB(G)
- P(b);OGATE::R1(C)
- P(d);OGATE::R(B)+P(D),XP(d),EP
- Refutation
- P(d);XS(F)
- Try
- Q(G);
- Vars
- P(a);OGATE::R1(B)
- P(b);OGATE::R1(C)
- Refutation
- P(d);XS(F)
- Try
- Q(G);
- Vars
- P(d);OGATE::QAR(G)+P(D),XP(d),EP
- P(a);OGATE::R1(B)
- P(b);OGATE::R1(C)
- P(d);OGATE::QAR(G)+P(D),XP(d)
- Refutation
- P(d);XS(F)
- Try
- Actual
- P(A);
- Vars
- P(d);OGATE,XS(F)::QAR2(G)
- P(a);EP,OGATE,XP(A)::R1(B)
- P(b);EP,OGATE,XP(A)::R1(C)
- P(a);OGATEB::QAB(G)
- P(b);::S(F)
- P(d);OGATE::QAR2(G)
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