MESON Chess Problem Database
Problem Display
PID: 132547 (6Q1/5N1p/2p1ppn1/2Pp1k1K/3R1b1P/8/6N1/8 w - - 0 1)
Koltanowski, George
Source?, 0000
#2
7 + 8
| 2425 | San Francisco Chronicle | 0000 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Bg3
- 2.Se3#
- 1...Be5
- 2.Se3#
- 2.Sh6#
- 1...Bd6
- 2.Se3#
- 1...Bc7
- 2.Se3#
- 1...Bb8
- 2.Se3#
- 1...Sxh4
- 2.Sxh4#
- 2.Rxf4#
- 2.Qg4#
- 1...Se5
- 2.Sd6#
- 2.Rxf4#
- 1...Se7
- 2.Rxf4#
- 2.Qg4#
- 1...Sf8
- 2.Rxf4#
- 2.Qg4#
- 1...Sh8
- 2.Rxf4#
- 2.Qg4#
- 1...e5
- 2.Sd6#
- 2.Qc8#
- 1...h6
- 2.Qxg6#
- 1...Bh2
- Tries
- 1.Sxf4?
- 1...Sxh4
- 2.Qg4#
- 1...Se5
- 2.Sd6#
- 2.Sh6#
- 1...Se7
- 2.Qg4#
- 1...Sf8
- 2.Qg4#
- 1...Sh8
- 2.Qg4#
- 1...e5
- 2.Sd6#
- 2.Sh6#
- 2.Qc8#
- 1...h6
- 2.Qxg6#
- 1...Sxf4+!
- 1...Sxh4
- 1.Qxh7?
- threat
- 2.Rxf4#
- 2.Qxg6#
- 1...Bc1
- 2.Qxg6#
- 1...Bd2
- 2.Qxg6#
- 1...Bh2
- 2.Se3#
- 2.Qxg6#
- 1...Be3
- 2.Sxe3#
- 2.Qxg6#
- 1...Bg3
- 2.Se3#
- 2.Qxg6#
- 1...Be5
- 2.Se3#
- 2.Sh6#
- 2.Qxg6#
- 1...Bg5
- 2.Qxg6#
- 1...Bd6
- 2.Se3#
- 2.Qxg6#
- 1...Bh6
- 2.Qxg6#
- 1...Bc7
- 2.Se3#
- 2.Qxg6#
- 1...Bb8
- 2.Se3#
- 2.Qxg6#
- 1...e5!
- threat
- 1.Sxf4?
- Keys
- 1.Qb8!
- threat
- 2.Qb1#
- 1...Bxb8
- 2.Se3#
- 1...e5
- 2.Qc8#
- 1...Se5
- 2.Sd6#
- 2.Rxf4#
- threat
- 1.Qb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XB(a)
- P(h);N_GUARD::QAB1(G),XS(g)
- Tries
- Try
- S(A);XB(a)
- Vars
- S(g);OGATE,XP(C)::QAB1(G)
- S(g);OGATE::QAB1(G)
- P(h);N_GUARD::QAB1(G),XS(g)
- Refutation
- S(g);CHECK,XS(A)
- Try
- Q(G);P_PINS(g),XP(h)
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(G),XS(g)
- Refutation
- P(e);
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- B(a);N_GUARD,XQ(G)::S(A)
- P(e);OGATEB::QAB(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).