MESON Chess Problem Database
Problem Display
PID: 176131 (5b2/1p4pK/1p2Q2B/nbkPN1r1/4P3/N1P5/8/8 w - - 0 1)
Freund, W
Schach-Echo, 1940
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Be3#
- 1...Rg2
- 2.Be3#
- 1...Rg4
- 2.Be3#
- 1...Rxe5
- 2.Be3#
- 1...Rf5
- 2.Be3#
- 1...Rg6
- 2.Be3#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sxd3#
- 2.Sd7#
- 1...Ba4
- 2.Sd3#
- 1...Bc4
- 2.Sd7#
- 1...Ba6
- 2.Sd7#
- 1...Bc6
- 2.Sd3#
- 1...Bd7
- 2.Sd3#
- 2.Sxd7#
- 1...Be8
- 2.Sd3#
- 1...Be7
- 2.Qxe7#
- 1...Sc4
- 2.Sd3#
- 1...Sc6
- 2.Sd7#
- 1...g6
- 2.Bxf8#
- 1...Rg1
- Tries
- 1.Bxg5?
- threat
- 2.Be3#
- 1...Sc4
- 2.Sd3#
- 1...Sc6
- 2.Sd7#
- 1...Sb3!
- threat
- 1.Bxg5?
- Keys
- 1.Qf6!
- threat
- 2.Qxf8#
- 1...Rxe5
- 2.Be3#
- 1...gxf6
- 2.Bxf8#
- 1...Rf5
- 2.Be3#
- 1...Rg6
- 2.Be3#
- 1...Bd6
- 2.Qf2#
- 1...Be7
- 2.Qxe7#
- 1...Sc4
- 2.Sd3#
- 1...Sc6
- 2.Sd7#
- threat
- 1.Qf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- R(d);OGATE::B(G)
- R(d);OGATE,XS(E)::B(G)
- B(b);N_GUARD::S(E)
- B(h);N_GUARD::QAB(F),XB(h)
- S(a);S_CUTB(b)::S(E)
- P(g);OGATE::B(G),XB(h)
- Tries
- Try
- B(G);XR(d)
- Threat
- B(G)
- Vars
- S(a);S_CUTB(b)::S(E)
- Refutation
- S(a);
- Try
- Actual
- Q(F);
- Threat
- QAB(F),XB(h)
- Vars
- R(d);OGATE,XS(E)::B(G)
- P(g);OGATE,XQ(F)::B(G),XB(h)
- R(d);OGATE::B(G)
- B(h);SBLOCK::QAB(F)
- B(h);N_GUARD::QAB(F),XB(h)
- S(a);S_CUTB(b)::S(E)
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).