MESON Chess Problem Database
Problem Display
PID: 147032 (3N4/3p4/p2R2p1/K1k1B3/1R2b1n1/PP3QP1/8/4b2q w - - 0 1)
Bicknell, Stephen
Australian Chess Problem Magazine, 1995
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Bf2
- 2.Rc4#
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bxg3
- 2.Rc4#
- 2.Qc3#
- 1...Bxb4+
- 2.axb4#
- 1...Bb1
- 2.Sb7#
- 2.Rd5#
- 1...Bc2
- 2.Sb7#
- 2.Rd5#
- 1...Bd3
- 2.Sb7#
- 2.Rd5#
- 1...Bd5
- 2.Rxd5#
- 1...Bf5
- 2.Sb7#
- 2.Rd5#
- 1...Bb7
- 2.Sxb7#
- 1...Sf2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...Sh6
- 2.Qe3#
- 1...Bf2
- Tries
- 1.Rd1?
- threat
- 2.Bd6#
- 1...Bxb4+
- 2.axb4#
- 1...Bxg3
- 2.Rc4#
- 2.Qc3#
- 1...Sxe5
- 2.Qe3#
- 1...Bd3
- 2.Sb7#
- 1...Bd5
- 2.Rxd5#
- 1...d5
- 2.Qf8#
- 1...d6
- 2.Bxd6#
- 1...Bd2!
- threat
- 1.Rd2?
- threat
- 2.Bd6#
- 2.Rc4#
- 2.Qc3#
- 1...Qxf3
- 2.Bd6#
- 2.Rc4#
- 1...Bxg3
- 2.Rc4#
- 2.Qc3#
- 1...Bxf3
- 2.Bd6#
- 2.Rc4#
- 1...Sxe5
- 2.Qe3#
- 1...Qf1
- 2.Bd6#
- 1...Bd3
- 2.Sb7#
- 1...Bd5
- 2.Rxd5#
- 1...Se3
- 2.Bd6#
- 2.Qxe3#
- 1...d5
- 2.Qc3#
- 2.Qf8#
- 1...d6
- 2.Bxd6#
- 2.Rc4#
- 2.Qc3#
- 1...Bxd2!
- threat
- 1.Rd4?
- threat
- 2.Bd6#
- 1...Bxb4+
- 2.axb4#
- 1...Bxg3
- 2.Rbc4#
- 2.Qc3#
- 1...Bd5
- 2.Rxd5#
- 1...d5
- 2.Qf8#
- 1...d6
- 2.Bxd6#
- 1...Sxe5!
- threat
- 1.Rxd7?
- threat
- 2.Bd4#
- 2.Qf8#
- 1...Bxb4+
- 2.axb4#
- 1...Qxf3
- 2.Bd4#
- 1...Bxf3
- 2.Bd4#
- 1...Sxe5
- 2.Qe3#
- 2.Qf8#
- 1...Qf1
- 2.Bd4#
- 1...Qg1
- 2.Qf8#
- 1...Qh4
- 2.Bd4#
- 1...Qh6
- 2.Bd4#
- 1...Qh7
- 2.Bd4#
- 1...Bf2
- 2.Rc4#
- 2.Qc3#
- 2.Qf8#
- 1...Bc3
- 2.Qxc3#
- 2.Qf8#
- 1...Bf5
- 2.Sb7#
- 2.Bd4#
- 2.Bd6#
- 2.Rd5#
- 2.Rc7#
- 1...Sf6
- 2.Bd4#
- 2.Qe3#
- 1...Qh8!
- threat
- 1.Qxe4?
- threat
- 2.Sb7#
- 2.Rd5#
- 2.Qc4#
- 2.Qd4#
- 1...Bxb4+
- 2.Qxb4#
- 2.axb4#
- 1...Sxe5
- 2.Sb7#
- 2.Rd5#
- 2.Qd4#
- 1...Qg1
- 2.Sb7#
- 2.Rd5#
- 2.Qd5#
- 2.Qc4#
- 1...Qf1
- 2.Sb7#
- 2.Rd5#
- 2.Qd5#
- 2.Qd4#
- 1...Bf2
- 2.Sb7#
- 2.Rc4#
- 2.Rd5#
- 2.Qc2#
- 2.Qc4#
- 1...Bc3
- 2.Sb7#
- 2.Rd5#
- 2.Qc4#
- 1...Se3
- 2.Sb7#
- 2.Qxe3#
- 2.Qd4#
- 1...Sf6
- 2.Sb7#
- 2.Qe3#
- 2.Qc4#
- 2.Qd4#
- 1...Qxe4!
- threat
- 1.Qf2+?
- 1...Bxf2
- 2.Rc4#
- 1...Se3
- 2.Qxe3#
- 1...Sxf2!
- 1...Bxf2
- 1.Qd3?
- threat
- 2.Qc4#
- 2.Qd4#
- 1...Bxb4+
- 2.axb4#
- 1...Sxe5
- 2.Qd4#
- 1...Qg1
- 2.Qc4#
- 1...Qf1
- 2.Qd4#
- 1...Bf2
- 2.Rc4#
- 2.Qc4#
- 2.Qc3#
- 1...Bc3
- 2.Qc4#
- 2.Qxc3#
- 1...Bd5
- 2.Qd4#
- 1...Se3
- 2.Qxe3#
- 2.Qd4#
- 1...Bxd3!
- threat
- 1.Qf8?
- threat
- 2.Bd4#
- 2.Rxd7#
- 1...Bxb4+
- 2.axb4#
- 1...Sxe5
- 2.Rxd7#
- 1...Qg1
- 2.Rxd7#
- 1...Qf3
- 2.Bd4#
- 1...Qf1
- 2.Bd4#
- 1...Qh4
- 2.Bd4#
- 1...Qh6
- 2.Bd4#
- 1...Qh7
- 2.Bd4#
- 1...Bf2
- 2.Rc4#
- 2.Rxd7#
- 1...Bc3
- 2.Rxd7#
- 1...Qh8!
- threat
- 1.Rd1?
- Keys
- 1.Rd3!
- threat
- 2.Bd6#
- 1...Bxb4+
- 2.axb4#
- 1...Bxg3
- 2.Rc4#
- 1...Bxd3
- 2.Sb7#
- 1...Sxe5
- 2.Qe3#
- 1...Bd5
- 2.Rxd5#
- 1...d5
- 2.Qf8#
- 1...d6
- 2.Bxd6#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 7
- Sets
- B(a);N_GUARD::QAR2(C),XB(a)
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- B(c);N_GUARD::R1(H),XB(c)
- B(c);N_GUARD::S(I),XB(c)
- S(d);N_GUARD::QAB(C)
- S(d);N_GUARD::QAB(C),XS(d)
- Tries
- Try
- R(H);
- Threat
- B(G)
- Vars
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- S(d);N_GUARD,XB(G)::QAB(C)
- B(c);N_GUARD::S(I)
- B(c);N_GUARD::R1(H),XB(c)
- P(h);N_GUARD::QAB(C)
- P(h);::B(G),XP(h)
- Refutation
- B(a);
- Try
- R(H);N_SPINR(E)
- Threat
- DUALS(3)
- Vars
- S(d);N_GUARD,XB(G)::QAB(C)
- Q(b);::B(G)
- B(c);N_GUARD::S(I)
- B(c);N_GUARD::R1(H),XB(c)
- Refutation
- B(a);P_PINR(E),XR(H)
- Try
- R(H);
- Threat
- B(G)
- Vars
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- B(c);N_GUARD::R1(H),XB(c)
- P(h);N_GUARD::QAB(C)
- P(h);::B(G),XP(h)
- Refutation
- S(d);XB(G)
- Try
- R(H);XP(h)
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- Q(b);XQ(C)::B(G)
- B(c);XQ(C)::B(G)
- Q(b);::B(G)
- Q(b);::QAB(C)
- Refutation
- Q(b);
- Try
- Q(C);XB(c)
- Threat
- DUALS(4)
- Refutation
- Q(b);XQ(C)
- Try
- Q(C);CHECK
- Vars
- B(a);N_PINR(E),XQ(C)::R1(E)
- S(d);N_GUARD,P_SPINS(d)::QAB(C),XS(d)
- Refutation
- S(d);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- S(d);XB(G)::QAB1(C)
- Q(b);::QAR1(C)
- Q(b);::QAB1(C)
- B(c);::QAB1(C)
- Refutation
- B(c);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- S(d);XB(G)::QAB(C)+R(H),XP(h)
- Q(b);::QAB(C)+R(H),XP(h)
- Q(b);::B(G)
- B(a);::QAB(C)+R(H),XP(h)
- Refutation
- Q(b);
- Try
- Actual
- R(H);
- Threat
- B(G)
- Vars
- B(a);CHECK,OGATE,XR(E)::P(A),XB(a)
- B(a);N_PINR(E),XP(D)::R1(E)
- B(c);N_GUARD,XR(H)::S(I)
- S(d);N_GUARD,XB(G)::QAB(C)
- B(c);N_GUARD::R1(H),XB(c)
- P(h);N_GUARD::QAB(C)
- P(h);::B(G),XP(h)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).