MESON Chess Problem Database
Problem Display
PID: 153417 (1bn5/1K1N2p1/N2p4/P1pkpP2/R2p4/3B4/8/8 w - - 0 1)
Dawson, Thomas Rayner
Braille Chess Magazine, 1951
#2
7 + 8
| 15256 | TRD Scrapbook | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...c4
- 2.Sb4#
- 1...e4
- 2.Bc4#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Ba7
- Tries
- 1.Saxc5?
- threat
- 2.Bc4#
- 2.Be4#
- 1...Sb6
- 2.Be4#
- 1...e4
- 2.Bc4#
- 2.Bxe4#
- 1...dxc5!
- threat
- 1.Saxb8?
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...e4
- 2.Bc4#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...c4!
- 1...Sb6
- 1.Ra1?
- 1...c4
- 2.Sb4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...e4!
- 1...c4
- 1.Ra2?
- 1...c4
- 2.Sb4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...e4!
- 1...c4
- 1.Ra3?
- 1...c4
- 2.Sb4#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...e4!
- 1...c4
- 1.Rc4?
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...e4!
- 1...Ba7
- 1.Saxc5?
- Keys
- 1.Rb4!
- 1...cxb4
- 2.Sxb4#
- 1...c4
- 2.Rb5#
- 1...Ba7
- 2.Sc7#
- 1...Bc7
- 2.Sxc7#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...e4
- 2.Bc4#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...cxb4
- 1.Rb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::S(E)
- B(g);N_GUARD::S(E),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(b);N_GUARD::S(E)
- P(d);SBLOCK::B(A)
- P(f);N_GUARD::S(G)
- Tries
- Try
- S(E);XP(b)
- Threat
- DUALS(2)
- Vars
- S(h);::B(A)
- Refutation
- P(e);XS(E)
- Try
- S(E);XB(g)
- Vars
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(d);SBLOCK::B(A)
- P(f);N_GUARD::S(G)
- Refutation
- P(b);
- Try
- R(B);
- Vars
- P(b);N_GUARD::S(E)
- B(g);N_GUARD::S(E)
- B(g);N_GUARD::S(E),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::S(G)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- P(b);N_GUARD::S(E)
- B(g);N_GUARD::S(E)
- B(g);N_GUARD::S(E),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::S(G)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- P(b);N_GUARD::S(E)
- B(g);N_GUARD::S(E)
- B(g);N_GUARD::S(E),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::S(G)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- B(g);N_GUARD::S(E)
- B(g);N_GUARD::S(E),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::S(G)
- Refutation
- P(d);
- Try
- Actual
- R(B);
- Vars
- P(b);XR(B)::S(E),XP(b)
- P(b);OGATEB::R(B)
- B(g);N_GUARD::S(E)
- B(g);N_GUARD::S(E),XB(g)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(d);SBLOCK::B(A)
- P(f);N_GUARD::S(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).