MESON Chess Problem Database
Problem Display
PID: 153850 (2K5/5Q2/4p3/1R2p3/k2b2bR/N7/1P6/8 w - - 0 1)
Alexander, Frederick Forrest Lawrie
Falkirk Herald, 1939
(First published on Wed Nov 15 1939)
#2
6 + 5
| 15373 | FFLA Scrapbook | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Bxb2
- 2.Qa7#
- 1...Ba7
- 2.Qxa7#
- 1...Bd1
- 2.Qa7#
- 1...Be2
- 2.Qa7#
- 1...Bf3
- 2.Qa7#
- 1...Bh3
- 2.Qa7#
- 1...Bf5
- 2.Qa7#
- 1...Bh5
- 2.Qa7#
- 1...Bxb2
- Tries
- 1.Qf3?
- threat
- 2.Qb3#
- 1...Bc3
- 2.Qd1#
- 1...Be3
- 2.Qd1#
- 1...Bxf3!
- threat
- 1.Qc7?
- threat
- 2.Qa5#
- 2.Qc2#
- 2.Qc4#
- 1...Bxb2
- 2.Qa5#
- 2.Qa7#
- 1...Bc5
- 2.Qa5#
- 1...Bb6
- 2.Qc2#
- 2.Qc4#
- 1...Bd1
- 2.Qa5#
- 2.Qc4#
- 2.Qa7#
- 1...Be2
- 2.Qa5#
- 2.Qc2#
- 2.Qa7#
- 1...Bf5
- 2.Qa5#
- 2.Qc4#
- 2.Qa7#
- 1...Bc3!
- threat
- 1.Qe7?
- threat
- 2.Qb4#
- 2.b3#
- 1...Bxb2
- 2.Qb4#
- 2.Qa7#
- 1...Bc3
- 2.b3#
- 1...Bd1
- 2.Qb4#
- 2.Qa7#
- 1...Bc5!
- threat
- 1.Qh7?
- threat
- 2.Qc2#
- 1...Bxb2
- 2.Qa7#
- 1...Bd1
- 2.Qa7#
- 1...Bf5
- 2.Qa7#
- 1...e4!
- threat
- 1.Qf8?
- threat
- 2.Qb4#
- 2.b3#
- 1...Bxb2
- 2.Qb4#
- 1...Bc3
- 2.b3#
- 1...Bd1
- 2.Qb4#
- 1...Bc5!
- threat
- 1.Qf3?
- Keys
- 1.Qd7!
- 1...Bxb2
- 2.Qa7#
- 1...Bg1
- 2.Qd1#
- 1...Bf2
- 2.Qd1#
- 1...Bc3
- 2.Qd1#
- 1...Be3
- 2.Qd1#
- 1...Bc5
- 2.Qd1#
- 1...Bb6
- 2.Qd1#
- 1...Ba7
- 2.Qd1#
- 2.Qxa7#
- 1...Bd1
- 2.Qa7#
- 1...Be2
- 2.Qa7#
- 1...Bf3
- 2.Qa7#
- 1...Bh3
- 2.Qa7#
- 1...Bf5
- 2.Qa7#
- 1...Bh5
- 2.Qa7#
- 1...e4
- 2.Qxd4#
- 1...Bxb2
- 1.Qd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD,P_SPINB(c),XP(A)::QAR(E)
- B(b);N_GUARD,P_SPINB(c)::QAR(E),XB(b)
- B(c);P_SPINB(b)::QAR(E)
- Tries
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- B(b);P_SPINB(c)::QAB(E)
- Refutation
- B(c);P_SPINB(b),XQ(E)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(b);P_SPINB(c)::QAR1(E)
- Refutation
- B(b);P_SPINB(c)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(b);P_SPINB(c)::P(A)
- Refutation
- B(b);P_SPINB(c)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- B(b);N_GUARD,P_SPINB(c),XP(A)::QAR(E)
- B(c);P_SPINB(b)::QAR(E)
- Refutation
- P(d);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(b);P_SPINB(c),XP(A)::QAR1(E)
- B(b);P_SPINB(c)::P(A)
- B(c);P_SPINB(b)::QAR1(E)
- Refutation
- B(b);P_SPINB(c)
- Try
- Actual
- Q(E);
- Vars
- B(b);N_GUARD,P_SPINB(c),XP(A)::QAR(E)
- B(b);OGATE,P_SPINB(c)::QAB(E)
- B(c);P_SPINB(b)::QAR(E)
- P(d);N_GUARD::QAR(E),XB(b)
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