MESON Chess Problem Database
Problem Display
PID: 266423 (8/2N1p1Qp/p3prpP/PpR2b2/1K3kPB/2P2P2/4P3/3B3N w - - 0 1)
Neale, Harry R
Stevenson, Edward
Sunday Referee, 1937
(First published on Sun Jul 25 1937)
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Bg5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...Ke3
- Tries
- 1.Ka3?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...b4+!
- 1...Ke3
- 1.Sd5+?
- 1...Ke5
- 2.Bg3#
- 1...exd5!
- 1...Ke5
- 1.Sxa6?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...e5!
- 1...Ke3
- 1.Sxe6+?
- 1...Ke3
- 2.Bg5#
- 1...Bxe6
- 2.Bg5#
- 1...Rxe6!
- 1...Ke3
- 1.Sa8?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...e5!
- 1...Ke3
- 1.Se8?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...e5!
- 1...Ke3
- 1.Bc2?
- 1...Bxc2
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...Ke3!
- 1...Bxc2
- 1.Bb3?
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...Ke3!
- 1...Bxg4
- 1.Bxf6?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...exf6!
- 1...Ke3
- 1.Rc4+?
- 1...Ke3
- 2.Bg5#
- 1...Ke5
- 2.Bg3#
- 1...Be4
- 2.Rxe4#
- 1...bxc4!
- 1...Ke3
- 1.Rxb5?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5
- 2.Bxg5#
- 2.Qxg5#
- 1...axb5!
- 1...Ke3
- 1.Qxf6?
- threat
- 2.Bg5#
- 2.Qe5#
- 2.Qg5#
- 1...Ke3
- 2.Bg5#
- 2.Qd4#
- 2.Qg5#
- 1...e5
- 2.Sd5#
- 2.Bg5#
- 2.Qxe5#
- 2.Qg5#
- 1...g5
- 2.Bxg5#
- 2.Qe5#
- 2.Qxg5#
- 1...exf6!
- threat
- 1.Qh8?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 1...Rf7
- 2.Qe5#
- 1...Rf8
- 2.Qe5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5!
- 1...Ke3
- 1.Qxe7?
- 1...Ke3
- 2.Bg5#
- 1...Bxg4
- 2.Bg5#
- 1...e5
- 2.Sd5#
- 2.Qxe5#
- 1...Rf7
- 2.Bg5#
- 2.Qg5#
- 1...Rf8
- 2.Bg5#
- 2.Qg5#
- 1...Bb1
- 2.Bg5#
- 1...Bc2
- 2.Bg5#
- 1...Bd3
- 2.Bg5#
- 1...Be4
- 2.Bg5#
- 1...g5!
- 1...Ke3
- 1.Ka3?
- Keys
- 1.Re5!
- 1...Kxe5
- 2.Bg3#
- 1...Bxg4
- 2.Bg3#
- 1...Be4
- 2.Rxe4#
- 1...Rf7
- 2.e3#
- 1...Rf8
- 2.e3#
- 1...Bb1
- 2.Bg3#
- 1...Bc2
- 2.Bg3#
- 1...Bd3
- 2.Bg3#
- 1...g5
- 2.Bg3#
- 1...Kxe5
- 1.Re5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- K(a);N_GUARD,S_FLIGHT::B(H)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- B(c);XP(G)::B(H)
- P(e);N_GUARD,SBLOCK::S(L)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- P(e);N_GUARD,SBLOCK::S(L)
- Refutation
- P(b);CHECK
- Try
- S(L);CHECK
- Vars
- K(a);N_GUARD,P_SPINR(f),S_FLIGHT::B(H)
- Refutation
- P(e);XS(L)
- Try
- S(L);XP(d)
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- P(e);
- Try
- S(L);CHECK,XP(e)
- Vars
- K(a);S_FLIGHT::B(H)
- B(c);XS(L)::B(H)
- Refutation
- R(f);XS(L)
- Try
- S(L);
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- P(e);
- Try
- S(L);
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- P(e);
- Try
- B(A);
- Vars
- B(c);XB(A)::B(H)
- B(c);XP(G)::B(H)
- P(e);N_GUARD,SBLOCK::S(L)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- K(a);S_FLIGHT
- Try
- B(A);
- Vars
- B(c);XP(G)::B(H)
- P(e);N_GUARD,SBLOCK::S(L)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- K(a);S_FLIGHT
- Try
- B(H);XR(f)
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- P(e);N_GUARD::S(L)
- B(c);::B(H)
- Refutation
- P(h);XB(H)
- Try
- R(J);CHECK
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- K(a);N_GUARD,P_SPINR(f),S_FLIGHT::B(H)
- B(c);N_GUARD,P_SPINB(c)::R1(J),XB(c)
- Refutation
- P(b);XR(J)
- Try
- R(J);XP(b)
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- P(e);N_GUARD,SBLOCK::S(L)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- P(d);XR(J)
- Try
- Q(M);P_PINB(c),XR(f)
- Threat
- DUALS(3)
- Refutation
- P(h);N_SPINB(c),XQ(M)
- Try
- Q(M);
- Vars
- K(a);N_GUARD,S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- P(e);N_GUARD,SBLOCK::S(L)
- R(f);OGATE::QAB1(M)
- B(c);::B(H)
- Refutation
- P(g);
- Try
- Q(M);XP(h)
- Vars
- K(a);N_GUARD,P_SPINP(e),S_FLIGHT::B(H)
- B(c);XP(G)::B(H)
- B(c);::B(H)
- Refutation
- P(g);
- Try
- Actual
- R(J);
- Vars
- K(a);N_GUARD,P_SPINR(f),S_FLIGHT,XR(J)::B(H)
- B(c);XP(G)::B(H)
- B(c);N_GUARD::R1(J),XB(c)
- R(f);::P(C)
- B(c);::B(H)
- P(g);::B(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).