MESON Chess Problem Database
Problem Display
PID: 65918 (R3b1B1/1p1p1r2/3P4/8/Pp1N1Q2/k3P2p/7R/7K w - - 0 1)
Jespersen, Karl Lorenz Jesper
British Chess Magazine, 1889
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Sb5#
- 2.Ra2#
- 1...Rf5
- 2.Ra2#
- 1...Rf6
- 2.Sb5#
- 2.Ra2#
- 1...Re7
- 2.Sb5#
- 2.Ra2#
- 1...Rg7
- 2.Sb5#
- 2.Ra2#
- 1...Rh7
- 2.Sb5#
- 2.Ra2#
- 1...Rf8
- 2.Sb5#
- 2.Ra2#
- 1...b3
- 2.Sb5#
- 1...b5
- 2.axb5#
- 1...Rxf4
- Tries
- 1.Bxf7?
- threat
- 2.Sb5#
- 2.Ra2#
- 1...b3
- 2.Sb5#
- 1...b5
- 2.Sxb5#
- 2.Ra2#
- 2.axb5#
- 1...Bxf7!
- threat
- 1.Ra5?
- 1...Rxf4
- 2.Sb5#
- 2.Ra2#
- 1...b3
- 2.Sb5#
- 1...Rf5
- 2.Ra2#
- 1...Rf6
- 2.Sb5#
- 2.Ra2#
- 1...Re7
- 2.Sb5#
- 2.Ra2#
- 1...Rg7
- 2.Sb5#
- 2.Ra2#
- 1...Rh7
- 2.Sb5#
- 2.Ra2#
- 1...Rf8
- 2.Sb5#
- 2.Ra2#
- 1...b5
- 2.axb5#
- 1...b6!
- 1...Rxf4
- 1.Ra7?
- 1...Rxf4
- 2.Sb5#
- 2.Ra2#
- 1...b3
- 2.Sb5#
- 1...Rf5
- 2.Ra2#
- 1...Rf6
- 2.Sb5#
- 2.Ra2#
- 1...Re7
- 2.Sb5#
- 2.Ra2#
- 1...Rg7
- 2.Sb5#
- 2.Ra2#
- 1...Rh7
- 2.Sb5#
- 2.Ra2#
- 1...Rf8
- 2.Sb5#
- 2.Ra2#
- 1...b5
- 2.axb5#
- 1...b6!
- 1...Rxf4
- 1.Qf5?
- 1...Rxf5
- 2.Ra2#
- 1...b3
- 2.Qc5#
- 1...Rf6
- 2.Sb5#
- 2.Ra2#
- 1...Re7
- 2.Sb5#
- 2.Ra2#
- 1...Rg7
- 2.Sb5#
- 2.Ra2#
- 1...Rh7
- 2.Sb5#
- 2.Ra2#
- 1...Rf8
- 2.Sb5#
- 2.Ra2#
- 1...b5
- 2.axb5#
- 1...b6!
- 1...Rxf5
- 1.Qxf7?
- threat
- 2.Sb5#
- 2.Ra2#
- 2.Qa2#
- 2.Qb3#
- 1...b3
- 2.Qxb3#
- 1...b5
- 2.Sxb5#
- 2.Ra2#
- 2.Qa2#
- 2.Qb3#
- 2.axb5#
- 1...Bxf7!
- threat
- 1.e4?
- threat
- 2.Qc1#
- 1...Rxf4
- 2.Sb5#
- 2.Ra2#
- 1...b3!
- threat
- 1.Bxf7?
- Keys
- 1.a5!
- 1...Ka4
- 2.Ra2#
- 1...Rxf4
- 2.Ra2#
- 1...b3
- 2.Sb5#
- 1...b6
- 2.axb6#
- 1...Rf5
- 2.Ra2#
- 1...Rf6
- 2.Ra2#
- 1...Re7
- 2.Ra2#
- 1...Rg7
- 2.Ra2#
- 1...Rh7
- 2.Ra2#
- 1...Rf8
- 2.Ra2#
- 1...b5
- 2.axb5 ep#
- 1...Ka4
- 1.a5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(f);::R1(B)
- P(c);SBLOCK::S(E)
- P(d);OGATE::R(H)+P(D),XP(d)
- Tries
- Try
- B(I);XR(f)
- Threat
- DUALS(2)
- Vars
- P(c);::S(E)
- Refutation
- B(g);XB(I)
- Try
- R(H);
- Vars
- P(c);SBLOCK::S(E)
- R(f);::R1(B)
- P(d);OGATE::R(H)+P(D),XP(d)
- Refutation
- P(d);
- Try
- R(H);
- Vars
- P(c);SBLOCK::S(E)
- R(f);::R1(B)
- P(d);OGATE::R(H)+P(D),XP(d)
- Refutation
- P(d);
- Try
- Q(F);
- Vars
- R(f);XQ(F)::R1(B)
- P(c);OGATEB::QAB(F)
- P(d);OGATE::R(H)+P(D),XP(d)
- Refutation
- P(d);
- Try
- Q(F);XR(f)
- Threat
- DUALS(4)
- Vars
- P(c);::QAR1(F),XP(c)
- Refutation
- B(g);XQ(F)
- Try
- P(C);
- Threat
- QAB(F)
- Refutation
- P(c);
- Try
- Actual
- P(D);
- Vars
- K(a);P-FLIGHT::R(B)
- R(f);XQ(F)::R1(B)
- P(c);SBLOCK::S(E)
- P(d);OGATE::R(H)+P(D),XP(d)
- R(f);::R1(B)
- P(d);OGATE::R(H)+P(D),XP(d),EP
Developed and maintained by Brian Stephenson.
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