MESON Chess Problem Database
Problem Display
PID: 268737 (5N2/8/1r1R1p2/1r3k2/2p3N1/4BB2/4QK2/bb6 w - - 0 1)
Becker, Christopher Bennett
Die Schwalbe, 1975
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Rd5#
- 1...Re5
- 2.Sh6#
- 1...Be5
- 2.Sh6#
- 1...Ba2
- 2.Qc2#
- 1...Bc2
- 2.Qxc2#
- 1...Rb2
- Tries
- 1.Bc1?
- threat
- 2.Sh6#
- 2.Qe6#
- 1...Rxd6
- 2.Sh6#
- 1...Rb2
- 2.Sh6#
- 2.Rd5#
- 1...Re5
- 2.Sh6#
- 1...Be5
- 2.Sh6#
- 1...Be4
- 2.Bxe4#
- 2.Qxe4#
- 1...Bd4+!
- threat
- 1.Bd2?
- threat
- 2.Sh6#
- 2.Qe6#
- 1...Rxd6
- 2.Sh6#
- 1...Re5
- 2.Sh6#
- 1...Be5
- 2.Sh6#
- 1...Be4
- 2.Bxe4#
- 2.Qxe4#
- 1...Bd4+!
- threat
- 1.Bh1?
- threat
- 2.Qf3#
- 1...Rb2
- 2.Rd5#
- 1...Be5
- 2.Sh6#
- 1...Be4!
- threat
- 1.Bg2?
- threat
- 2.Qf3#
- 1...Rb2
- 2.Rd5#
- 1...Be5
- 2.Sh6#
- 1...Be4!
- threat
- 1.Be4+?
- 1...Kxe4
- 2.Qf3#
- 1...Bxe4!
- 1...Kxe4
- 1.Bd5?
- threat
- 2.Qf3#
- 1...Be5
- 2.Sh6#
- 1...Be4
- 2.Be6#
- 1...Rb2!
- threat
- 1.Bb7?
- threat
- 2.Qf3#
- 1...Be5
- 2.Sh6#
- 1...Be4
- 2.Bc8#
- 1...Rb2!
- threat
- 1.Rd5+?
- 1...Be5
- 2.Sh6#
- 1...Rxd5!
- 1...Be5
- 1.Qxc4?
- threat
- 2.Qe6#
- 2.Qf4#
- 2.Qc8#
- 1...Rxd6
- 2.Qf4#
- 1...Rb4
- 2.Qe6#
- 2.Qc8#
- 1...Rc5
- 2.Qe6#
- 2.Qf4#
- 1...Rd5
- 2.Qf4#
- 2.Qc8#
- 1...Re5
- 2.Sh6#
- 2.Qf4#
- 1...Rc6
- 2.Qe6#
- 2.Qf4#
- 1...Rb7
- 2.Qe6#
- 2.Qf4#
- 1...Rb8
- 2.Qe6#
- 2.Qf4#
- 1...Bd4
- 2.Qe6#
- 2.Qc8#
- 1...Be5
- 2.Sh6#
- 2.Qe6#
- 2.Qc8#
- 1...Ba2
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 2.Qf4#
- 1...Be4
- 2.Qe6#
- 2.Qxe4#
- 2.Qc8#
- 1...Rb2+!
- threat
- 1.Bc1?
- Keys
- 1.Bc6!
- threat
- 2.Qf3#
- 1...Rb2
- 2.Rxf6#
- 1...Be5
- 2.Sh6#
- 1...Be4
- 2.Bd7#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(d);N_GUARD,P_PINQ(A),S_CUTB(a)::R(F)
- R(d);SBLOCK::S(E)
- B(a);SBLOCK::S(E)
- B(b);N_GUARD::QAB(A)
- B(b);N_GUARD::QAB(A),XB(b)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(f);XR(F)::S(E)
- R(d);::S(E)
- B(a);::S(E)
- Refutation
- B(a);CHECK
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(f);XR(F)::S(E)
- R(d);::S(E)
- B(a);::S(E)
- Refutation
- B(a);CHECK
- Try
- B(D);
- Threat
- QAR2(A)
- Vars
- R(d);N_GUARD,P_PINQ(A),S_CUTB(a)::R(F)
- B(a);SBLOCK::S(E)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- QAR2(A)
- Vars
- R(d);N_GUARD,P_PINQ(A),S_CUTB(a)::R(F)
- B(a);SBLOCK::S(E)
- Refutation
- B(b);
- Try
- B(D);CHECK
- Vars
- K(e);S_FLIGHT,XB(D)::QAB1(A)
- Refutation
- B(b);XB(D)
- Try
- B(D);
- Threat
- QAR2(A)
- Vars
- B(a);SBLOCK::S(E)
- B(b);SBLOCK::B(D)
- Refutation
- R(d);P_PINQ(A)
- Try
- B(D);
- Threat
- QAR2(A)
- Vars
- B(a);SBLOCK::S(E)
- B(b);SBLOCK::B(D)
- Refutation
- R(d);P_PINQ(A)
- Try
- R(F);CHECK
- Vars
- B(a);P_SPINB(a)::S(E)
- Refutation
- R(d);XR(F)
- Try
- Q(A);XP(c)
- Threat
- DUALS(3)
- Vars
- R(f);XR(F)::QAR1(A)
- Refutation
- R(d);CHECK
- Try
- Actual
- B(D);
- Threat
- QAR2(A)
- Vars
- R(d);P_PINQ(A),S_CUTB(a)::R1(F),XP(g)
- B(a);SBLOCK::S(E)
- B(b);SBLOCK::B(D)
Developed and maintained by Brian Stephenson.
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