MESON Chess Problem Database
Problem Display
PID: 271062 (K2B2n1/1B1N4/4R3/PQb5/3k4/N6n/1Pqp4/3b4 w - - 0 1)
Leech, EFH
Sunday Referee, 1932
(First published on Sun Sep 18 1932)
#2
9 + 7
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qc4#
- 1...Qb3
- 2.Re4#
- 1...Qd3
- 2.Qxc5#
- 1...Qa4
- 2.Re4#
- 1...Qe4
- 2.Rxe4#
- 1...Qf5
- 2.Qc4#
- 1...Qg6
- 2.Qc4#
- 1...Qh7
- 2.Qc4#
- 1...Qc1
- 2.Re4#
- 1...Qxb2
- 2.Qc4#
- 1...Qc3
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Be2
- 2.Sxc2#
- 1...Bf3
- 2.Sxc2#
- 1...Bg4
- 2.Sxc2#
- 1...Bh5
- 2.Sxc2#
- 1...Bxa3
- 2.Qd5#
- 1...Bb4
- 2.Qd5#
- 1...Bb6
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Ba7
- 2.Qd5#
- 1...Be7
- 2.Qd5#
- 1...Bf8
- 2.Qd5#
- 1...Sf6
- 2.Bxf6#
- 1...Sh6
- 2.Bf6#
- 1...Qb1
- Tries
- 1.Qb3?
- threat
- 2.Sb5#
- 2.Qd5#
- 2.Qe3#
- 1...Qxb2
- 2.Sb5#
- 2.Re4#
- 2.Qc4#
- 2.Qe3#
- 1...Bxa3
- 2.Qd5#
- 1...Qc3
- 2.Qd5#
- 2.Qxc3#
- 1...Qd3
- 2.Qd5#
- 1...Qe4
- 2.Sb5#
- 2.Rxe4#
- 2.Qc3#
- 1...Qf5
- 2.Sb5#
- 2.Qc4#
- 2.Qc3#
- 2.Qe3#
- 1...Qc4
- 2.Re4#
- 2.Qxc4#
- 2.Qe3#
- 1...Be2
- 2.Sxc2#
- 2.Qd5#
- 2.Qe3#
- 1...Bf3
- 2.Sxc2#
- 2.Sb5#
- 2.Qe3#
- 1...Sf4
- 2.Sb5#
- 2.Qe3#
- 1...Sf6
- 2.Sb5#
- 2.Bxf6#
- 2.Qe3#
- 1...Se7
- 2.Sb5#
- 2.Qe3#
- 1...Qxb3!
- threat
- 1.Qb4+?
- 1...Kd3
- 2.Qe4#
- 1...Qc4
- 2.Qxc4#
- 1...Bxb4!
- 1...Kd3
- 1.Qxc5+?
- 1...Kd3
- 2.Re3#
- 2.Qe3#
- 2.Qd6#
- 2.Qd5#
- 1...Qxc5!
- 1...Kd3
- 1.Qb3?
- Keys
- 1.Bh4!
- 1...Qxb2
- 2.Qc4#
- 1...Bxa3
- 2.Qd5#
- 1...Qe4
- 2.Rxe4#
- 1...Qc4
- 2.Qxc4#
- 1...Sg1
- 2.Bf2#
- 1...Qb1
- 2.Qc4#
- 1...Qb3
- 2.Re4#
- 1...Qd3
- 2.Qxc5#
- 1...Qa4
- 2.Re4#
- 1...Qf5
- 2.Qc4#
- 1...Qg6
- 2.Qc4#
- 1...Qh7
- 2.Qc4#
- 1...Qc1
- 2.Re4#
- 1...Qc3
- 2.Re4#
- 1...Be2
- 2.Sxc2#
- 1...Bf3
- 2.Sxc2#
- 1...Bg4
- 2.Sxc2#
- 1...Bh5
- 2.Sxc2#
- 1...Bb4
- 2.Qd5#
- 1...Bb6
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Ba7
- 2.Qd5#
- 1...Be7
- 2.Qd5#
- 1...Bf8
- 2.Qd5#
- 1...Sf2
- 2.Bxf2#
- 1...Sf4
- 2.Bf2#
- 1...Sg5
- 2.Bf2#
- 1...Sf6
- 2.Bxf6#
- 1...Sh6
- 2.Bf6#
- 1...Se7
- 2.Bf6#
- 1...Qxb2
- 1.Bh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::QAR1(D)
- Q(b);N_GUARD::R1(E)
- Q(b);N_GUARD,SBLOCK::QAB1(D),XB(f)
- Q(b);N_GUARD,P_PINP(C)::R1(E)
- Q(b);N_GUARD,P_PINB(F)::R1(E),XQ(b)
- Q(b);N_GUARD,XP(A)::QAR1(D)
- Q(b);N_GUARD::QAR1(D),XQ(b)
- B(a);N_GUARD::S(B),XQ(b)
- B(a);N_GUARD,P_PINB(F)::S(B),XQ(b)
- B(f);OGATE,XS(B)::QAR1(D)
- B(f);OGATE::QAR1(D)
- S(g);N_GUARD::B(I),XS(g)
- S(g);N_GUARD::B(I)
- Tries
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- B(f);XS(B)::QAR1(D)
- Q(b);SBLOCK::QAR1(D)
- Refutation
- Q(b);XQ(D)
- Try
- Q(D);CHECK
- Vars
- K(e);OGATE,P-FLIGHT::QAB1(D)
- Q(b);N_GUARD,P_SPINQ(b)::QAR1(D),XQ(b)
- Refutation
- B(f);XQ(D)
- Try
- Q(D);CHECK,XB(f)
- Refutation
- Q(b);XQ(D)
- Try
- Actual
- B(I);
- Vars
- Q(b);N_GUARD,XP(A)::QAR1(D)
- B(f);OGATE,XS(B)::QAR1(D)
- Q(b);N_GUARD,P_PINB(F)::R1(E),XQ(b)
- Q(b);N_GUARD::QAR1(D),XQ(b)
- S(d);N_GUARD::B(I)
- Q(b);N_GUARD::QAR1(D)
- Q(b);N_GUARD::R1(E)
- Q(b);N_GUARD,SBLOCK::QAB1(D),XB(f)
- Q(b);N_GUARD,P_PINP(C)::R1(E)
- B(a);N_GUARD::S(B),XQ(b)
- B(a);N_GUARD,P_PINB(F)::S(B),XQ(b)
- B(f);OGATE::QAR1(D)
- S(d);N_GUARD::B(I),XS(d)
- S(g);N_GUARD::B(I),XS(g)
- S(g);N_GUARD::B(I)
Developed and maintained by Brian Stephenson.
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