MESON Chess Problem Database
Problem Display
PID: 953 (6Q1/5pK1/5p1P/6Bk/p3N1p1/1q6/1n6/b2b4 w - - 0 1)
Lewis, Robert Tony
McDowell, Michael
The Problemist Supplement, 1994
#2
5 + 9
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Qxf7#
- 1...Qa3
- 2.Qxf7#
- 1...Qc3
- 2.Qxf7#
- 1...Qd3
- 2.Qxf7#
- 1...Qe3
- 2.Qxf7#
- 1...Qf3
- 2.Qxf7#
- 1...Qg3
- 2.Qxf7#
- 1...Qh3
- 2.Qxf7#
- 1...Qb4
- 2.Qxf7#
- 1...Qb5
- 2.Qxf7#
- 1...Qb6
- 2.Qxf7#
- 1...Qb8
- 2.Qxf7#
- 1...Sc4
- 2.Qxf7#
- 1...Qc2
- Tries
- 1.Kh7?
- threat
- 2.Sxf6#
- 1...fxg5
- 2.Qxg5#
- 1...Qc2
- 2.Qxf7#
- 1...Qe6
- 2.Sg3#
- 1...Qc3
- 2.Qxf7#
- 1...Qd3
- 2.Qxf7#
- 1...Qf3
- 2.Qxf7#
- 1...Qb6
- 2.Sg3#
- 2.Qxf7#
- 1...Sd3
- 2.Sg3#
- 1...Sc4
- 2.Qxf7#
- 1...f5
- 2.Sf6#
- 1...Bc2!
- threat
- 1.h7?
- threat
- 2.h8Q#
- 2.h8R#
- 1...fxg5
- 2.h8Q#
- 2.h8R#
- 1...Bc2
- 2.h8Q#
- 2.h8R#
- 1...Qa2
- 2.h8Q#
- 2.h8R#
- 1...Qc2
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qc4
- 2.h8Q#
- 2.h8R#
- 1...Qd5
- 2.h8Q#
- 2.h8R#
- 1...Qe6
- 2.h8Q#
- 2.h8R#
- 1...Qa3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qc3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qd3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qe3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qf3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qg3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qh3
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qb4
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qb5
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qb6
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Qb7
- 2.h8Q#
- 2.h8R#
- 1...Qb8
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...Be2
- 2.h8Q#
- 2.h8R#
- 1...Bf3
- 2.h8Q#
- 2.h8R#
- 1...Sd3
- 2.h8Q#
- 2.h8R#
- 1...Sc4
- 2.Qxf7#
- 2.h8Q#
- 2.h8R#
- 1...a3
- 2.h8Q#
- 2.h8R#
- 1...f5
- 2.h8Q#
- 2.h8R#
- 1...g3!
- threat
- 1.Kh7?
- Keys
- 1.Kh8!
- threat
- 2.Sxf6#
- 1...fxg5
- 2.Qxg5#
- 1...Qe6
- 2.Sg3#
- 1...Qc3
- 2.Qxf7#
- 1...Qf3
- 2.Qxf7#
- 1...Qb6
- 2.Sg3#
- 2.Qxf7#
- 1...Sd3
- 2.Sg3#
- 1...Sc4
- 2.Qxf7#
- 1...f5
- 2.Sf6#
- threat
- 1.Kh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD::QAB(E),XP(i)
- S(c);S_CUTQ(d)::QAB(E),XP(i)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- S(A),XP(h)
- Vars
- P(h);OGATE,XB(B)::QAR1(E),XP(h)
- Q(d);N_GUARD,P_PINS(A)::QAB(E),XP(i)
- Q(d);N_GUARD::S(A)
- Q(d);N_GUARD::QAB(E),XP(i)
- S(c);S_CUTQ(d)::S(A)
- S(c);S_CUTQ(d)::QAB(E),XP(i)
- P(h);::S(A)
- Refutation
- B(b);P_PINS(A)
- Try
- P(C);
- Threat
- P=Q
- Vars
- P(h);XB(B)::P=Q
- B(b);::P=Q
- Q(d);::P=Q
- S(c);::P=Q
- P(e);::P=Q
- P(h);::P=Q
- Refutation
- P(f);
- Try
- Actual
- K(D);S_FLIGHT
- Threat
- S(A),XP(h)
- Vars
- P(h);OGATE,XB(B)::QAR1(E),XP(h)
- Q(d);N_GUARD::S(A)
- Q(d);N_GUARD::QAB(E),XP(i)
- S(c);S_CUTQ(d)::S(A)
- S(c);S_CUTQ(d)::QAB(E),XP(i)
- P(h);::S(A)
Developed and maintained by Brian Stephenson.
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