MESON Chess Problem Database
Problem Display
PID: 64270 (8/4p2p/1p2p2P/1R1NN3/1B1kP3/p2P1bQ1/Kp3P2/1n6 w - - 0 1)
Fenner, A Jack
Chess, 1946
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Sc6#
- 1...Bh1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bg2
- 2.Sc6#
- 1...Bxe4
- 2.Sc6#
- 1...Bg4
- 2.Sc6#
- 1...Bh5
- 2.Sc6#
- 1...Sd2
- 2.Bc3#
- 1...Sc3+
- 2.Bxc3#
- 1...exd5
- 2.Rxd5#
- 1...Bd1
- Tries
- 1.Kxb1?
- threat
- 2.Bc3#
- 1...exd5
- 2.Rxd5#
- 1...a2+!
- threat
- 1.Sf4?
- threat
- 2.Sxe6#
- 2.Sxf3#
- 2.Sc6#
- 1...Bxe4
- 2.Se2#
- 2.Sxe6#
- 2.Qe3#
- 1...Bd1
- 2.Sxe6#
- 2.Sc6#
- 2.Qe3#
- 1...Bh1
- 2.Se2#
- 2.Sxe6#
- 2.Sc6#
- 2.Qe3#
- 1...Be2
- 2.Sxe2#
- 2.Sxe6#
- 2.Sc6#
- 2.Qe3#
- 1...Bg2
- 2.Se2#
- 2.Sxe6#
- 2.Sc6#
- 2.Qe3#
- 1...Bg4
- 2.Sc6#
- 2.Qe3#
- 1...Bh5
- 2.Sxe6#
- 2.Sc6#
- 2.Qe3#
- 1...Sd2
- 2.Sxe6#
- 2.Sc6#
- 1...Sc3+!
- threat
- 1.Sc7?
- threat
- 2.Sxe6#
- 1...Bg4
- 2.Sc6#
- 2.Qe3#
- 1...Sc3+!
- threat
- 1.Sxe7?
- threat
- 2.S7c6#
- 1...Bxe4
- 2.Qe3#
- 1...Sc3+!
- threat
- 1.Be1?
- 1...Sc3+
- 2.Bxc3#
- 1...Bxe4
- 2.Sc6#
- 1...exd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc6#
- 1...Bh1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bg2
- 2.Sc6#
- 1...Bg4
- 2.Sc6#
- 1...Bh5
- 2.Sc6#
- 1...Sd2!
- 1...Sc3+
- 1.Bd2?
- threat
- 2.Be3#
- 1...Sc3+
- 2.Bxc3#
- 1...exd5
- 2.Rxd5#
- 1...Sxd2!
- threat
- 1.Ba5?
- threat
- 2.Bxb6#
- 1...Sc3+
- 2.Bxc3#
- 1...exd5
- 2.Rxd5#
- 1...bxa5!
- threat
- 1.Qxf3?
- threat
- 2.Sc6#
- 1...Sc3+
- 2.Bxc3#
- 1...Kxe5!
- threat
- 1.Qh3?
- 1...Sc3+
- 2.Bxc3#
- 1...Bxe4
- 2.Sc6#
- 1...exd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc6#
- 1...Bh1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bg2
- 2.Sc6#
- 1...Bg4
- 2.Sc6#
- 1...Bh5
- 2.Sc6#
- 1...Sd2
- 2.Bc3#
- 1...Kxe5!
- 1...Sc3+
- 1.Kxb1?
- Keys
- 1.Qg1!
- 1...Sc3+
- 2.Bxc3#
- 1...Kxe5
- 2.Qg7#
- 1...Bxe4
- 2.f4#
- 1...exd5
- 2.Rxd5#
- 1...Bd1
- 2.f4#
- 1...Bh1
- 2.f4#
- 1...Be2
- 2.f4#
- 1...Bg2
- 2.f4#
- 1...Bg4
- 2.f4#
- 1...Bh5
- 2.f4#
- 1...Sd2
- 2.Bc3#
- 1...Sc3+
- 1.Qg1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(d);::S(I)
- B(d);XP(F)::S(I)
- S(a);N_GUARD::B(E)
- S(a);CHECK,N_GUARD::B(E),XS(a)
- P(g);OGATE,XS(H)::R1(G),XP(g)
- Tries
- Try
- K(A);S_FLIGHT,XS(a)
- Threat
- B(E)
- Vars
- P(g);OGATE,XS(H)::R1(G),XP(g)
- Refutation
- P(c);CHECK
- Try
- S(H);
- Threat
- DUALS(3)
- Refutation
- S(a);CHECK
- Try
- S(H);
- Threat
- S(H),XP(g)
- Refutation
- S(a);CHECK
- Try
- S(H);XP(h)
- Threat
- S(H)
- Vars
- B(d);OGATE,XP(F)::QAB1(D)
- Refutation
- S(a);CHECK
- Try
- B(E);
- Vars
- S(a);CHECK,N_GUARD::B(E),XS(a)
- B(d);XP(F)::S(I)
- P(g);OGATE,XS(H)::R1(G),XP(g)
- B(d);::S(I)
- Refutation
- S(a);
- Try
- B(E);
- Threat
- B(E)
- Vars
- S(a);CHECK,N_GUARD::B(E),XS(a)
- P(g);OGATE,XS(H)::R1(G),XP(g)
- Refutation
- S(a);XB(E)
- Try
- B(E);
- Threat
- B(E),XP(f)
- Vars
- S(a);CHECK,N_GUARD::B(E),XS(a)
- P(g);OGATE,XS(H)::R1(G),XP(g)
- Refutation
- P(f);XB(E)
- Try
- Q(D);XB(d)
- Threat
- S(I)
- Vars
- S(a);CHECK,N_GUARD::B(E),XS(a)
- Refutation
- K(e);S_FLIGHT,XS(I)
- Try
- Q(D);
- Vars
- S(a);CHECK,N_GUARD::B(E),XS(a)
- B(d);XP(F)::S(I)
- P(g);OGATE,XS(H)::R1(G),XP(g)
- B(d);::S(I)
- S(a);N_GUARD::B(E)
- Refutation
- K(e);S_FLIGHT,XS(I)
- Try
- Actual
- Q(D);
- Vars
- S(a);CHECK,N_GUARD::B(E),XS(a)
- K(e);OGATEB,S_FLIGHT,XS(I)::QAB(D)
- B(d);OGATE,XP(F)::QAB(D)+P(B)
- P(g);OGATE,XS(H)::R1(G),XP(g)
- B(d);OGATE::QAB(D)+P(B)
- S(a);N_GUARD::B(E)
Developed and maintained by Brian Stephenson.
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