MESON Chess Problem Database
Problem Display
PID: 176051 (8/p2p2p1/Pp1Q1pP1/3p4/3k4/1K1N1P2/2Pb1P2/8 w - - 0 1)
Ursprung, Karl
Schach-Echo, 1938
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Qb4#
- 1...Be1
- 2.Qf4#
- 1...Bc3
- 2.Qf4#
- 1...Be3
- 2.Qb4#
- 1...Bb4
- 2.Qxb4#
- 2.Qf4#
- 1...Bf4
- 2.Qb4#
- 2.Qxf4#
- 1...Ba5
- 2.Qf4#
- 1...Bg5
- 2.Qb4#
- 1...Bh6
- 2.Qb4#
- 1...b5
- 2.Qc5#
- 1...f5
- 2.Qe5#
- 1...Bc1
- Tries
- 1.Qc7?
- 1...Bc3
- 2.Qf4#
- 2.Qxc3#
- 1...Bc1
- 2.Qc3#
- 1...Be1
- 2.Qf4#
- 1...Be3
- 2.Qc3#
- 1...Bb4
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 2.Qc3#
- 1...Ba5
- 2.Qf4#
- 1...Bg5
- 2.Qc3#
- 1...Bh6
- 2.Qc3#
- 1...b5
- 2.Qc5#
- 2.Qxa7#
- 1...f5
- 2.Qe5#
- 1...d6!
- 1...Bc3
- 1.Qe7?
- 1...Bc3
- 2.Qe3#
- 1...Bc1
- 2.Qb4#
- 1...Be1
- 2.Qe3#
- 1...Be3
- 2.Qb4#
- 2.Qxe3#
- 2.fxe3#
- 1...Bb4
- 2.Qxb4#
- 2.Qe3#
- 1...Bf4
- 2.Qb4#
- 1...Ba5
- 2.Qe3#
- 1...Bg5
- 2.Qb4#
- 1...Bh6
- 2.Qb4#
- 1...b5
- 2.Qc5#
- 1...f5
- 2.Qe5#
- 2.Qxg7#
- 1...d6!
- 1...Bc3
- 1.Qc7?
- Keys
- 1.Qxd7!
- 1...Bc3
- 2.Qg4#
- 1...Bc1
- 2.Qa4#
- 1...Be1
- 2.Qg4#
- 1...Be3
- 2.Qa4#
- 1...Bb4
- 2.Qg4#
- 1...Bf4
- 2.Qa4#
- 1...Ba5
- 2.Qg4#
- 1...Bg5
- 2.Qa4#
- 1...Bh6
- 2.Qa4#
- 1...b5
- 2.Qxa7#
- 1...f5
- 2.Qxg7#
- 1...Bc3
- 1.Qxd7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAR2(G)
- P(d);N_GUARD::QAB1(G)
- P(e);N_GUARD::QAB1(G)
- Tries
- Try
- Q(G);N_PINP(c)
- Vars
- B(a);N_GUARD::QAB1(G)
- B(a);N_GUARD::QAR2(G)
- P(e);N_GUARD::QAB1(G)
- Refutation
- P(g);
- Try
- Q(G);N_PINP(c)
- Vars
- B(a);N_GUARD::QAB1(G)
- B(a);N_GUARD::QAR2(G)
- P(d);N_GUARD::QAB1(G)
- Refutation
- P(g);
- Try
- Actual
- Q(G);XP(g)
- Vars
- B(a);N_GUARD::QAR(G)
- P(d);OGATEB::QAB(G),XP(f)
- P(e);OGATEB::QAB(G),XP(h)
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).