MESON Chess Problem Database
Problem Display
PID: 227708 (5K2/2n3p1/1p1Q2Pb/2p5/4k3/1NR3pN/1n1P4/5R2 w - - 0 1)
Mead, CG
Brisbane Courier, 1926
#2
8 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxd2
- 2.Sxd2#
- 1...Be3
- 2.Rxe3#
- 1...Bf4
- 2.Rxf4#
- 1...Bg5
- 2.Sxg5#
- 1...Sd1
- 2.Rc4#
- 1...Sd3
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Se6+
- 2.Qxe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...c4
- 2.Qd4#
- 1...b5
- 2.Sxc5#
- 1...Bxd2
- Tries
- 1.Kf7?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Rxf4#
- 1...Be3
- 2.Rxe3#
- 1...Bg5
- 2.Sxg5#
- 1...Sd1
- 2.Rc4#
- 1...Sd3
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...c4
- 2.Qd4#
- 1...b5
- 2.Sxc5#
- 1...g2!
- 1...Bxd2
- 1.Kg8?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Rxf4#
- 1...Be3
- 2.Rxe3#
- 1...Bg5
- 2.Sxg5#
- 1...Sd1
- 2.Rc4#
- 1...Sd3
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...c4
- 2.Qd4#
- 1...b5
- 2.Sxc5#
- 1...g2!
- 1...Bxd2
- 1.Rf5?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Se6+
- 2.Qxe6#
- 1...Be3
- 2.Qe5#
- 1...Bf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sd3
- 2.Qxd3#
- 1...Sc4
- 2.Qd3#
- 1...Kxf5!
- threat
- 1.Rf6?
- 1...Se6+
- 2.Qxe6#
- 1...Bxd2
- 2.Sxd2#
- 1...g2
- 2.Sf2#
- 1...Be3
- 2.Rxe3#
- 1...Bf4
- 2.Rxf4#
- 1...Bg5
- 2.Sxg5#
- 1...Sd1
- 2.Rc4#
- 1...Sd3
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...c4
- 2.Qd4#
- 1...b5
- 2.Sxc5#
- 1...gxf6+!
- 1...Se6+
- 1.Rxg3?
- 1...Se6+
- 2.Qxe6#
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Rxf4#
- 1...Be3
- 2.Rxe3#
- 1...Bg5
- 2.Sxg5#
- 1...Sd1
- 2.d3#
- 1...Sa4
- 2.d3#
- 1...Sc4
- 2.d3#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...c4
- 2.Qd4#
- 1...b5
- 2.Sxc5#
- 1...Sd3!
- 1...Se6+
- 1.Rxc5?
- threat
- 2.Re5#
- 2.Qd4#
- 1...bxc5
- 2.Sxc5#
- 1...Sd5
- 2.Qxd5#
- 1...Be3
- 2.Re5#
- 1...Bf4
- 2.Rxf4#
- 2.Qd4#
- 1...Sd3
- 2.Rc4#
- 2.Qd4#
- 1...Sc4
- 2.Rxc4#
- 2.Qd4#
- 1...Sb5
- 2.Re5#
- 2.Qd5#
- 1...Se6+!
- threat
- 1.Qe7+?
- 1...Se6+
- 2.Qxe6#
- 1...Kd5!
- 1...Se6+
- 1.Qc6+?
- 1...Sd5
- 2.Qe6#
- 1...Ke5!
- 1...Sd5
- 1.d3+?
- 1...Ke3
- 2.Qe5#
- 1...Sxd3!
- 1...Ke3
- 1.Kf7?
- Keys
- 1.Rf7!
- 1...Se6+
- 2.Qxe6#
- 1...Bxd2
- 2.Sxd2#
- 1...g2
- 2.Sf2#
- 1...Be3
- 2.Rxe3#
- 1...Bf4
- 2.Rxf4#
- 1...Bg5
- 2.Sxg5#
- 1...Sd1
- 2.Rc4#
- 1...Sd3
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Sa8
- 2.Qe6#
- 1...Se8
- 2.Qe6#
- 1...c4
- 2.Qd4#
- 1...b5
- 2.Sxc5#
- 1...Se6+
- 1.Rf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(f);XP(B)::S(C),XB(f)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- S(g);N_GUARD::QAR2(F)
- S(g);CHECK,N_GUARD::QAR2(F),XS(g)
- P(d);N_GUARD::QAR1(F)
- P(e);N_GUARD::S(C),XP(d)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(f);XP(B)::S(C),XB(f)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- S(g);N_GUARD::QAR2(F)
- S(g);N_GUARD::QAR2(F),XS(g)
- P(d);N_GUARD::QAR1(F)
- P(e);N_GUARD::S(C),XP(d)
- Refutation
- P(b);
- Try
- K(H);P-FLIGHT
- Vars
- B(f);XP(B)::S(C),XB(f)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- S(g);N_GUARD::QAR2(F)
- S(g);N_GUARD::QAR2(F),XS(g)
- P(d);N_GUARD::QAR1(F)
- P(e);N_GUARD::S(C),XP(d)
- Refutation
- P(b);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- S(g);CHECK,N_GUARD::QAR2(F),XS(g)
- B(f);::QAR1(F)
- S(a);N_GUARD::QAB1(F),XS(a)
- S(a);N_GUARD::QAB1(F)
- Refutation
- K(c);S_FLIGHT,XR(A)
- Try
- R(A);
- Vars
- S(g);CHECK,N_GUARD::QAR2(F),XS(g)
- B(f);XP(B)::S(C),XB(f)
- P(b);N_GUARD::S(E)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- S(g);N_GUARD::QAR2(F)
- P(d);N_GUARD::QAR1(F)
- P(e);N_GUARD::S(C),XP(d)
- Refutation
- P(h);CHECK,XR(A)
- Try
- R(D);XP(b)
- Vars
- S(g);CHECK,N_GUARD::QAR2(F),XS(g)
- B(f);XP(B)::S(C),XB(f)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- S(a);N_GUARD::P(B)
- S(g);N_GUARD::QAR2(F)
- P(d);N_GUARD::QAR1(F)
- P(e);N_GUARD::S(C),XP(d)
- Refutation
- S(a);
- Try
- R(D);XP(d)
- Threat
- DUALS(2)
- Vars
- P(e);XR(D)::S(C),XP(e)
- S(g);N_GUARD::QAB1(F),XS(g)
- B(f);::R1(D)
- Refutation
- S(g);CHECK
- Try
- Q(F);CHECK
- Vars
- S(g);CHECK,N_GUARD,P_SPINS(g)::QAR2(F),XS(g)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(F);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR2(F)
- Refutation
- K(c);P-FLIGHT
- Try
- P(B);CHECK
- Vars
- K(c);P-FLIGHT::QAR2(F)
- Refutation
- S(a);XP(B)
- Try
- Actual
- R(A);
- Vars
- S(g);CHECK,N_GUARD::QAR2(F),XS(g)
- B(f);XP(B)::S(C),XB(f)
- P(b);N_GUARD::S(E)
- B(f);N_GUARD::R1(D),XB(f)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- S(a);N_GUARD::R(D)
- S(a);N_GUARD::R(D),XS(a)
- S(g);N_GUARD::QAR2(F)
- P(d);N_GUARD::QAR1(F)
- P(e);N_GUARD::S(C),XP(d)
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).