MESON Chess Problem Database
Problem Display
PID: 270181 (7N/1n4Rp/2p2k2/1p1b4/1P1K1p2/3P3B/p7/B5R1 w - - 0 1)
Russell, HA
Sunday Referee, 1931
(First published on Sun Apr 5 1931)
#2
8 + 8
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Rf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Be6
- 2.Ke4#
- 1...Bf7
- 2.Rxf7#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...c5+
- 2.Kxd5#
- 1...h5
- 2.R1g6#
- 1...h6
- 2.R1g6#
- 1...Bh1
- Tries
- 1.Bd7?
- 1...c5+
- 2.Kxd5#
- 1...Be6
- 2.Ke4#
- 1...Bf7
- 2.Rxf7#
- 1...Bh1
- 2.Rf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...h5
- 2.R1g6#
- 1...h6
- 2.R1g6#
- 1...Bg2!
- 1...c5+
- 1.Bc8?
- 1...c5+
- 2.Kxd5#
- 1...Be6
- 2.Ke4#
- 1...Bf7
- 2.Rxf7#
- 1...Bh1
- 2.Rf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...h5
- 2.R1g6#
- 1...h6
- 2.R1g6#
- 1...Bg2!
- 1...c5+
- 1.R1g2?
- 1...c5+
- 2.Kxd5#
- 1...Bf7
- 2.Rxf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Be6
- 2.Ke4#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...h5
- 2.R2g6#
- 1...h6
- 2.R2g6#
- 1...Bxg2!
- 1...c5+
- 1.Rxb7?
- threat
- 2.Kc5#
- 1...c5+
- 2.Kxc5#
- 2.Kxd5#
- 1...Bg2!
- threat
- 1.Rc7?
- 1...c5+
- 2.Kxd5#
- 1...Bh1
- 2.Rf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Be6
- 2.Ke4#
- 1...Bf7
- 2.Ke4#
- 2.Rxf7#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...h5
- 2.Rg6#
- 1...h6
- 2.Rg6#
- 1...Bg2!
- 1...c5+
- 1.Rd7?
- 1...c5+
- 2.Kxd5#
- 1...Bh1
- 2.Rf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Be6
- 2.Ke4#
- 1...Bf7
- 2.Ke4#
- 2.Rxf7#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...h5
- 2.Rg6#
- 1...h6
- 2.Rg6#
- 1...Bg2!
- 1...c5+
- 1.Rxh7?
- threat
- 2.Rg6#
- 1...c5+
- 2.Kxd5#
- 1...Bf7
- 2.Rxf7#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Bg2!
- threat
- 1.Bd7?
- Keys
- 1.R1g3!
- 1...c5+
- 2.Kxd5#
- 1...fxg3
- 2.Ke3#
- 1...Bf7
- 2.Rxf7#
- 1...Bh1
- 2.Rf7#
- 1...Bg2
- 2.Rf7#
- 1...Bb3
- 2.Ke4#
- 1...Bf3
- 2.Rf7#
- 1...Bc4
- 2.Ke4#
- 1...Be4
- 2.Kxe4#
- 2.Rf7#
- 1...Be6
- 2.Ke4#
- 1...Bg8
- 2.Ke4#
- 1...Sa5
- 2.Kc5#
- 1...Sc5
- 2.Kxc5#
- 1...Sd6
- 2.Kc5#
- 1...Sd8
- 2.Kc5#
- 1...f3
- 2.Ke3#
- 1...h5
- 2.R3g6#
- 1...h6
- 2.R3g6#
- 1...c5+
- 1.R1g3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(d);N_GUARD::R1(G)
- B(d);::B(A)+K(F)
- B(d);N_GUARD::R1(G),XB(d)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(e);CHECK::B(A)+K(F),XB(d)
- P(h);N_GUARD::R1(B)
- Tries
- Try
- B(D);
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- B(d);::B(A)+K(F)
- B(d);N_GUARD::R1(G),XB(d)
- B(d);N_GUARD::R1(G)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(h);N_GUARD::R1(B)
- Refutation
- B(d);
- Try
- B(D);
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- B(d);::B(A)+K(F)
- B(d);N_GUARD::R1(G),XB(d)
- B(d);N_GUARD::R1(G)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(h);N_GUARD::R1(B)
- Refutation
- B(d);
- Try
- R(B);
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- B(d);N_GUARD::R1(G),XB(d)
- B(d);::B(A)+K(F)
- B(d);N_GUARD::R1(G)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(h);N_GUARD::R1(B)
- Refutation
- B(d);XR(B)
- Try
- R(G);XS(g)
- Threat
- B(A)+K(F)
- Refutation
- B(d);
- Try
- R(G);
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- B(d);N_GUARD::R1(G)
- B(d);::B(A)+K(F)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(h);N_GUARD::R1(B)
- Refutation
- B(d);
- Try
- R(G);
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- B(d);N_GUARD::R1(G)
- B(d);::B(A)+K(F)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(h);N_GUARD::R1(B)
- Refutation
- B(d);
- Try
- R(G);XP(h)
- Threat
- R1(B)
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- B(d);N_GUARD::R1(G),XB(d)
- Refutation
- B(d);
- Try
- Actual
- R(B);
- Vars
- P(e);CHECK::B(A)+K(F),XB(d)
- P(b);XR(B)::B(A)+K(F)
- B(d);N_GUARD::R1(G),XB(d)
- B(d);N_GUARD::R1(G)
- B(d);::B(A)+K(F)
- S(g);::B(A)+K(F)
- S(g);::B(A)+K(F),XS(g)
- P(b);::B(A)+K(F)
- P(h);N_GUARD::R1(B)
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).