MESON Chess Problem Database
Problem Display
PID: 144654 (8/7K/BPkp4/3N1Q1p/Np5q/1P4B1/8/8 w - - 0 1)
Shire, David J
The Problemist Supplement, 2011
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Qxg3
- 2.Sxb4#
- 2.Se7#
- 1...Qg5
- 2.Sxb4#
- 1...Qf6
- 2.Sxb4#
- 1...Qe7+
- 2.Sxe7#
- 1...Qd8
- 2.Sxb4#
- 1...Qh1
- 2.Sxb4#
- 2.Se7#
- 1...Qh2
- 2.Sxb4#
- 2.Se7#
- 1...Qh3
- 2.Sxb4#
- 2.Se7#
- 1...Qc4
- 2.Se7#
- 1...Qd4
- 2.Se7#
- 1...Qf4
- 2.Se7#
- 1...Qg4
- 2.Se7#
- 1...Qxg3
- Tries
- 1.Sf4?
- threat
- 2.Qc8#
- 2.Qb5#
- 1...Qxf4
- 2.Qb5#
- 1...d5
- 2.Qe6#
- 2.Qxd5#
- 1...Qg5
- 2.Qc8#
- 1...Qd8
- 2.Qb5#
- 1...Qh3
- 2.Qb5#
- 1...Qg4
- 2.Qb5#
- 1...Qe7+!
- threat
- 1.Sf6?
- threat
- 2.Qd7#
- 2.Qc8#
- 2.Qb5#
- 2.Qd5#
- 1...Qxf6
- 2.Qb5#
- 1...Qg5
- 2.Qd7#
- 2.Qc8#
- 1...Qh1
- 2.Qc2#
- 2.Qd7#
- 2.Qc8#
- 2.Qb5#
- 1...Qh3
- 2.Qc2#
- 2.Qb5#
- 2.Qd5#
- 1...Qc4
- 2.Qd7#
- 2.Qc8#
- 1...Qd4
- 2.Qd7#
- 2.Qc8#
- 2.Qb5#
- 1...Qg4
- 2.Qb5#
- 2.Qd5#
- 1...d5
- 2.Qe6#
- 2.Qd7#
- 2.Qc8#
- 2.Qxd5#
- 1...Qe4!
- threat
- 1.Bf2?
- 1...Qe7+
- 2.Sxe7#
- 1...Qxf2
- 2.Sxb4#
- 2.Se7#
- 1...Qg3
- 2.Sxb4#
- 2.Se7#
- 1...Qg5
- 2.Sxb4#
- 1...Qf6
- 2.Sxb4#
- 1...Qd8
- 2.Sxb4#
- 1...Qh1
- 2.Sxb4#
- 2.Se7#
- 1...Qh2
- 2.Sxb4#
- 2.Se7#
- 1...Qh3
- 2.Sxb4#
- 2.Se7#
- 1...Qc4
- 2.Se7#
- 1...Qd4
- 2.Se7#
- 1...Qf4
- 2.Se7#
- 1...Qg4
- 2.Se7#
- 1...Qe4!
- 1...Qe7+
- 1.Bf4?
- threat
- 2.Sxb4#
- 1...Qe7+
- 2.Sxe7#
- 1...Qxf4
- 2.Se7#
- 1...Qe1!
- threat
- 1.Bb7+?
- 1...Kb5
- 2.Sdc3#
- 2.Sc7#
- 1...Kxb7!
- 1...Kb5
- 1.Qe6?
- threat
- 2.Qxd6#
- 1...Qe7+
- 2.Sxe7#
- 1...Qxg3
- 2.Sxb4#
- 2.Se7#
- 1...Qf6
- 2.Sxb4#
- 1...Qd8
- 2.Sxb4#
- 1...Qf4
- 2.Se7#
- 1...Qe4+!
- threat
- 1.Sf4?
- Keys
- 1.Be5!
- 1...Qe7+
- 2.Sxe7#
- 1...Kxd5
- 2.Bb7#
- 1...dxe5
- 2.Qe6#
- 1...Qe4
- 2.Se7#
- 1...Qe1
- 2.Se7#
- 1...Qf2
- 2.Sxb4#
- 2.Se7#
- 1...Qg3
- 2.Sxb4#
- 2.Se7#
- 1...Qg5
- 2.Sxb4#
- 1...Qf6
- 2.Sxb4#
- 1...Qd8
- 2.Sxb4#
- 1...Qh1
- 2.Sxb4#
- 2.Se7#
- 1...Qh2
- 2.Sxb4#
- 2.Se7#
- 1...Qh3
- 2.Sxb4#
- 2.Se7#
- 1...Qc4
- 2.Se7#
- 1...Qd4
- 2.Se7#
- 1...Qf4
- 2.Se7#
- 1...Qg4
- 2.Se7#
- 1...Qe7+
- 1.Be5!
This is a version of 2506
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::S(D),XP(a)
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD::S(D)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(D)::QAB1(E)
- Q(b);::QAR2(E)
- Q(b);::QAB1(E)
- Refutation
- Q(b);CHECK
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(b);XS(D)::QAB1(E)
- Refutation
- Q(b);P_PINQ(E)
- Try
- B(B);
- Vars
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD::S(D),XP(a)
- Q(b);N_GUARD::S(D)
- Refutation
- Q(b);P_PINQ(E)
- Try
- B(B);
- Threat
- S(D),XP(a)
- Vars
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD,XB(B)::S(D)
- Refutation
- Q(b);
- Try
- B(F);CHECK
- Refutation
- K(d);S_FLIGHT,XB(F)
- Try
- Q(E);P_PINP(e)
- Threat
- QAR1(E),XP(e)
- Vars
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- Q(b);N_GUARD::S(D),XP(a)
- Q(b);N_GUARD::S(D)
- Refutation
- Q(b);CHECK
- Try
- Actual
- B(B);
- Vars
- Q(b);CHECK,N_GUARD::S(D),XQ(b)
- K(d);S_FLIGHT,XS(D)::B(F)
- P(e);OGATEB,XB(B)::QAR2(E)
- Q(b);N_GUARD,P_PINQ(E)::S(D)
- Q(b);N_GUARD::S(D)
- Q(b);N_GUARD::S(D),XP(a)
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