MESON Chess Problem Database
Problem Display
PID: 43254 (n4N2/1B2Pppr/qp1P2Pp/1R2Pk2/1NR2p1K/1QB5/pP4P1/1b6 w - - 0 1)
Uitenbroek, Hans
de Boer, Johan
1st Prize, NBvSV-70 JT, 2001
#2
14 + 11
| 145 | StrateGems | 2002 |
| 15174 | FIDE Album (2001-2003) | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Bc8#
- 2.e6#
- 1...Qa4
- 2.Bc8#
- 1...Qa5
- 2.Bc8#
- 1...Qa7
- 2.e6#
- 1...Bc2
- 2.Qxc2#
- 1...Be4
- 2.Bxe4#
- 1...f3
- 2.g4#
- 1...Qa3
- Tries
- 1.Sc2?
- threat
- 2.Sd4#
- 2.Be4#
- 1...Qxb5
- 2.Be4#
- 1...Bxc2
- 2.Qxc2#
- 1...f3
- 2.Se3#
- 2.g4#
- 1...Qxb7!
- threat
- 1.Sd3?
- threat
- 2.Be4#
- 2.Rxf4#
- 1...Qxb7
- 2.Rxf4#
- 1...Qa4
- 2.Be4#
- 2.Bc8#
- 1...f3
- 2.Be4#
- 2.Rf4#
- 2.g4#
- 1...Bxd3!
- threat
- 1.Sd5?
- threat
- 2.Rxf4#
- 1...Qa4
- 2.Bc8#
- 1...f3
- 2.Se3#
- 2.Rf4#
- 2.g4#
- 1...Be4!
- threat
- 1.Sxa6?
- threat
- 2.Bc8#
- 2.e6#
- 1...Be4
- 2.Bxe4#
- 2.Bc8#
- 1...Sc7!
- threat
- 1.Be1?
- threat
- 2.Qh3#
- 1...Qa3
- 2.Bc8#
- 1...Bd3
- 2.Qxd3#
- 1...f3
- 2.Qxf3#
- 2.g4#
- 1...Qxb5!
- threat
- 1.Bd2?
- threat
- 2.Rxf4#
- 2.Qh3#
- 1...Qa3
- 2.Bc8#
- 2.Rxf4#
- 1...Bd3
- 2.Rxf4#
- 2.Qxd3#
- 1...Be4
- 2.Bxe4#
- 2.Qh3#
- 1...f3
- 2.Rf4#
- 2.Qxf3#
- 2.g4#
- 1...Qxb5!
- threat
- 1.Bd4?
- threat
- 2.Qh3#
- 1...f3
- 2.Qxf3#
- 1...Qa3
- 2.e6#
- 1...Bd3
- 2.Qxd3#
- 1...Qxb7!
- threat
- 1.Bxa6?
- threat
- 2.Bc8#
- 2.e6#
- 1...Be4
- 2.Bc8#
- 1...Sc7!
- threat
- 1.Rd4?
- threat
- 2.Qxf7#
- 1...fxg6
- 2.Qe6#
- 2.Qf7#
- 1...f6
- 2.Qe6#
- 1...Qxb5!
- threat
- 1.Re4?
- threat
- 2.Qxf7#
- 1...fxg6
- 2.Qe6#
- 2.Qf7#
- 1...f6
- 2.Qe6#
- 1...Qxb7!
- threat
- 1.Rcc5?
- threat
- 2.Qxf7#
- 1...fxg6
- 2.Qe6#
- 2.Qf7#
- 1...f6
- 2.Qe6#
- 1...Qxb7!
- threat
- 1.Rc7?
- threat
- 2.Qxf7#
- 1...fxg6
- 2.Qe6#
- 2.Qf7#
- 1...f6
- 2.Qe6#
- 1...Qxb7!
- threat
- 1.Rc8?
- threat
- 2.Qxf7#
- 1...fxg6
- 2.Qe6#
- 2.Qf7#
- 1...f6
- 2.Qe6#
- 1...Qxb7!
- threat
- 1.Qd1?
- threat
- 2.Qg4#
- 2.Qh5#
- 1...fxg6
- 2.Qg4#
- 1...f3
- 2.Qxf3#
- 2.g4#
- 1...h5!
- threat
- 1.g3?
- threat
- 2.Rxf4#
- 2.g4#
- 1...Be4
- 2.Bxe4#
- 2.g4#
- 1...f3
- 2.Rf4#
- 2.g4#
- 1...h5
- 2.Rxf4#
- 1...fxg3!
- threat
- 1.e8Q?
- threat
- 2.Qd7#
- 2.Qxf7#
- 2.Qc8#
- 1...Qxb5
- 2.Qxf7#
- 1...fxg6
- 2.Qxg6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe6#
- 2.Qc8#
- 1...Sc7
- 2.Qxf7#
- 1...f6
- 2.Qd7#
- 2.Qe6#
- 2.Qc8#
- 1...Qxb7!
- threat
- 1.Sc2?
- Keys
- 1.Sc6!
- threat
- 2.Sd4#
- 1...Qxb5
- 2.Bc8#
- 1...Qxb7
- 2.e6#
- 1...f3
- 2.g4#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(e);N_GUARD::B(L)
- Q(e);N_GUARD::R(H)+P(I)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);N_GUARD::B(L),XB(a)
- P(c);N_GUARD::P(B)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(e);XR(H)::B(L)
- B(a);OGATE,XS(E)::QAB(C),XB(a)
- Refutation
- Q(e);XB(L)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(e);XB(L)::R1(F),XP(c)
- Refutation
- B(a);XS(E)
- Try
- S(E);
- Threat
- R1(F),XP(c)
- Vars
- Q(e);N_GUARD::B(L)
- Refutation
- B(a);
- Try
- S(E);XQ(e)
- Threat
- DUALS(2)
- Refutation
- S(k);
- Try
- B(D);
- Threat
- QAB(C)
- Vars
- Q(e);N_GUARD::B(L)
- B(a);N_GUARD::QAB(C),XB(a)
- Refutation
- Q(e);XR(H)
- Try
- B(D);
- Threat
- DUALS(2)
- Refutation
- Q(e);XR(H)
- Try
- B(D);
- Threat
- QAB(C)
- Vars
- P(c);OGATEB::QAR2(C),XP(c)
- Q(e);N_GUARD::R(H)+P(I)
- B(a);N_GUARD::QAB(C),XB(a)
- Refutation
- Q(e);XB(L)
- Try
- B(L);XQ(e)
- Threat
- DUALS(2)
- Vars
- B(a);::B(L)
- Refutation
- S(k);
- Try
- R(F);
- Threat
- QAR2(C),XP(h)
- Vars
- P(h);N_GUARD::QAB1(C)
- Refutation
- Q(e);XR(H)
- Try
- R(F);
- Threat
- QAR2(C),XP(h)
- Vars
- P(h);N_GUARD::QAB1(C)
- Refutation
- Q(e);XB(L)
- Try
- R(F);
- Threat
- QAR2(C),XP(h)
- Vars
- P(h);N_GUARD::QAB1(C)
- Refutation
- Q(e);XB(L)
- Try
- R(F);
- Threat
- QAR2(C),XP(h)
- Vars
- P(h);N_GUARD::QAB1(C)
- Refutation
- Q(e);XB(L)
- Try
- R(F);
- Threat
- QAR2(C),XP(h)
- Vars
- P(h);N_GUARD::QAB1(C)
- Refutation
- Q(e);XB(L)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(h);XP(K)::QAB1(C)
- Refutation
- P(g);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- P(g);::R1(F),XP(c)
- Refutation
- P(c);XP(B)
- Try
- P(M);
- Threat
- DUALS(3)
- Vars
- Q(e);XR(H)::QAR2(M),XP(h)
- S(k);::QAR2(M),XP(h)
- Refutation
- Q(e);XB(L)
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- Q(e);N_GUARD,XR(H)::B(L)
- Q(e);N_GUARD,XB(L)::R(H)+P(I)
- P(c);N_GUARD::P(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).