MESON Chess Problem Database
Problem Display
PID: 21229 (8/3N2p1/1p2Bp2/4p3/R2rk3/2P2pPN/2P1pK2/R7 w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
Morning Post, 1917
#2
9 + 8
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Rxa4
- 2.Rxa4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...e1Q+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...Rxa4
- Tries
- 1.Sg1?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...Rxa4
- 2.Rxa4#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...f5!
- 1...e1Q+
- 1.Rb1?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...g5
- 2.Sxf6#
- 1...Rb4
- 2.Rbxb4#
- 2.Raxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxa4!
- 1...e1Q+
- 1.Rc1?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...g5
- 2.Sxf6#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxa4!
- 1...e1Q+
- 1.Re1?
- 1...g5
- 2.Sxf6#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxa4!
- 1...g5
- 1.Rg1?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...g5
- 2.Sxf6#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxa4!
- 1...e1Q+
- 1.Rh1?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...g5
- 2.Sxf6#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxa4!
- 1...e1Q+
- 1.Rb4?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...g5
- 2.Sxf6#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxb4!
- 1...e1Q+
- 1.Rc4?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...g5
- 2.Sxf6#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Sg5#
- 1...g6
- 2.Sxf6#
- 1...Rxc4!
- 1...e1Q+
- 1.cxd4?
- threat
- 2.dxe5#
- 2.d5#
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...b5
- 2.Sc5#
- 1...exd4!
- threat
- 1.g4?
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...Rxa4
- 2.Rxa4#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...f5!
- 1...e1Q+
- 1.Sg1?
- Keys
- 1.Sf4!
- 1...e1Q+
- 2.Rxe1#
- 1...e1B+
- 2.Rxe1#
- 1...Rxa4
- 2.Rxa4#
- 1...exf4
- 2.Rxd4#
- 1...e1S
- 2.Rxe1#
- 1...e1R
- 2.Rxe1#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...b5
- 2.Sc5#
- 1...f5
- 2.Bd5#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...e1Q+
- 1.Sf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);N_SPINR(c),OGATE,XR(G)::R(A),XR(c)
- R(c);OGATEB::R(G),XR(c)
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- P(h);N_GUARD::S(I),XP(g)
- Tries
- Try
- S(F);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- R(c);N_SPINR(c),OGATE,XR(G)::R(A),XR(c)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(h);N_GUARD::S(I),XP(g)
- Refutation
- P(g);
- Try
- R(A);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- P(h);N_GUARD::S(I),XP(g)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- R(A);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- P(h);N_GUARD::S(I),XP(g)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- R(A);P_PINP(a)
- Vars
- P(h);N_GUARD::S(I),XP(g)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- R(A);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- P(h);N_GUARD::S(I),XP(g)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- R(A);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- P(h);N_GUARD::S(I),XP(g)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- R(G);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- P(h);N_GUARD::S(I),XP(g)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- R(G);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- P(h);N_GUARD::S(I),XP(g)
- P(f);N_GUARD::S(I)
- P(g);N_GUARD::S(F)
- Refutation
- R(c);N_SPINR(c),XR(G)
- Try
- P(D);XR(c)
- Threat
- DUALS(2)
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- P(f);N_GUARD::S(I)
- Refutation
- P(e);P_SPINP(e),XP(D)
- Try
- P(E);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- R(c);N_SPINR(c),OGATE,XR(G)::R(A),XR(c)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(h);N_GUARD::S(I),XP(g)
- Refutation
- P(g);
- Try
- Actual
- S(F);
- Vars
- P(a);CHECK,OGATEB::R(A),XQ(a)
- P(a);CHECK,OGATEB::R(A),XB(a)
- R(c);N_SPINR(c),OGATE,XR(G)::R(A),XR(c)
- P(e);N_GUARD,XS(F)::R1(G),XR(c)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XR(a)
- R(c);OGATEB::R(G),XR(c)
- P(f);N_GUARD::S(I)
- P(g);SBLOCK::B(H)
- P(h);N_GUARD::S(I),XP(g)
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).