MESON Chess Problem Database
Problem Display
PID: 263882 (2Q2bB1/3r4/1P6/R2Npp1b/1PpkN2B/4R3/nn1P3K/8 w - - 0 1)
Uysal, Achmet
Schweizerische Schachzeitung, 2010
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Rxd5#
- 1...Rd6
- 2.Qc5#
- 1...Re7
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...Bh6
- 2.Qc5#
- 1...Bg7
- 2.Qc5#
- 1...Sc3
- 2.dxc3#
- 1...Rxd5
- Tries
- 1.Sec3?
- threat
- 2.Sb5#
- 1...Rxd5
- 2.Rxd5#
- 1...Sxc3
- 2.dxc3#
- 1...e4
- 2.Bf6#
- 1...Bf7
- 2.Se2#
- 1...Rf7!
- threat
- 1.Sg5?
- threat
- 2.Se6#
- 1...Rd6
- 2.Qc5#
- 1...Re7
- 2.Qc5#
- 1...Bf7
- 2.Sf3#
- 1...Bc5
- 2.Qxc5#
- 1...e4!
- threat
- 1.Sd6?
- threat
- 2.Sb5#
- 2.Sxf5#
- 2.Qc5#
- 1...Rxd6
- 2.Qc5#
- 1...e4
- 2.Bf6#
- 1...Rf7
- 2.Qc5#
- 1...Rc7
- 2.Sb5#
- 2.Sxf5#
- 1...Bg4
- 2.Sb5#
- 2.Qc5#
- 1...Bg6
- 2.Sb5#
- 2.Qc5#
- 1...Bf7
- 2.Sxf5#
- 2.Qc5#
- 1...Sc3
- 2.Sxf5#
- 2.Qc5#
- 2.dxc3#
- 1...Sd3
- 2.Sb5#
- 2.Sxf5#
- 2.Qxc4#
- 1...Sa4
- 2.Sb5#
- 2.Sxf5#
- 2.Qxc4#
- 1...f4
- 2.Sb5#
- 2.Sf5#
- 2.Qc5#
- 1...Bxd6!
- threat
- 1.Sdc3?
- threat
- 2.Sb5#
- 1...Rf7
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Bf7
- 2.Se2#
- 1...Sxc3!
- threat
- 1.Sc7?
- threat
- 2.Sb5#
- 2.Se6#
- 1...Rxc7
- 2.Rd5#
- 1...Rf7
- 2.Se6#
- 2.Rd5#
- 1...Rd5
- 2.Se6#
- 2.Rxd5#
- 1...Rd6
- 2.Sb5#
- 1...Re7
- 2.Sb5#
- 2.Rd5#
- 1...Bc5
- 2.Sb5#
- 1...Sc3
- 2.Se6#
- 1...Bf7!
- threat
- 1.Se7?
- threat
- 2.Sxf5#
- 2.Sc6#
- 2.Qxd7#
- 2.Qc5#
- 1...Rxe7
- 2.Rd5#
- 2.Qc5#
- 1...Sxb4
- 2.Sxf5#
- 2.Qc5#
- 1...fxe4
- 2.Sf5#
- 2.Sc6#
- 2.Qxd7#
- 2.Qc5#
- 1...Rd5
- 2.Sxf5#
- 2.Sc6#
- 2.Rxd5#
- 1...Rd6
- 2.Sxf5#
- 2.Qc5#
- 1...Ra7
- 2.Sxf5#
- 2.Sc6#
- 2.Rd5#
- 2.Qc5#
- 1...Rb7
- 2.Sxf5#
- 2.Sc6#
- 2.Rd5#
- 2.Qc5#
- 1...Rc7
- 2.Sxf5#
- 2.Rd5#
- 1...Rd8
- 2.Sxf5#
- 2.Sc6#
- 2.Qc5#
- 2.Qxd8#
- 1...Bg4
- 2.Sc6#
- 2.Qxd7#
- 2.Qc5#
- 1...Bg6
- 2.Sc6#
- 2.Qxd7#
- 2.Qc5#
- 1...Bf7
- 2.Sxf5#
- 2.Sc6#
- 2.Qc5#
- 1...Be8
- 2.Sxf5#
- 2.Sc6#
- 2.Qc5#
- 1...Sc3
- 2.Sxf5#
- 2.Sc6#
- 2.Qc5#
- 1...Sd3
- 2.Sxf5#
- 2.Sc6#
- 2.Qxd7#
- 2.Qxc4#
- 1...Sa4
- 2.Sxf5#
- 2.Sc6#
- 2.Qxd7#
- 2.Qxc4#
- 1...f4
- 2.Sf5#
- 2.Sc6#
- 2.Qxd7#
- 2.Qc5#
- 1...Bxe7!
- threat
- 1.Sec3?
- Keys
- 1.Sf4!
- threat
- 2.Se6#
- 1...exf4
- 2.Bf6#
- 1...Rd6
- 2.Qc5#
- 1...Re7
- 2.Rd5#
- 2.Qc5#
- 1...Bf7
- 2.Se2#
- 1...Bc5
- 2.Qxc5#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(h);OGATE,XS(H)::R1(G),XR(h)
- R(h);S_CUTB(i)::QAB1(J)
- B(i);N_GUARD::QAB1(J),XB(i)
- B(i);N_GUARD::QAB1(J)
- S(a);OGATE::P(A),XS(a)
- Tries
- Try
- S(E);
- Threat
- S(E)
- Vars
- R(h);OGATE,XS(H)::R1(G),XR(h)
- S(a);OGATE,XS(E)::P(A),XS(a)
- P(e);OGATEB::B(F)
- B(g);N_GUARD::S(E)
- Refutation
- R(h);
- Try
- S(E);
- Threat
- S(E)
- Vars
- R(h);S_CUTB(i)::QAB1(J)
- B(g);N_GUARD::S(E)
- B(i);N_GUARD::QAB1(J),XB(i)
- Refutation
- P(e);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(h);XS(E)::QAB1(J)
- P(e);OGATEB::B(F)
- R(h);::QAB1(J)
- Refutation
- B(i);XS(E)
- Try
- S(H);
- Threat
- S(H)
- Vars
- R(h);N_GUARD::R1(G)
- R(h);N_GUARD::R1(G),XR(h)
- B(g);N_GUARD::S(H)
- Refutation
- S(a);XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(h);N_GUARD,XS(H)::R1(G)
- R(h);::S(H)
- B(i);::S(H)
- S(a);::S(H)
- Refutation
- B(g);
- Try
- S(H);
- Threat
- DUALS(4)
- Refutation
- B(i);XS(H)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- P(e);OGATEB,XS(H)::B(F)
- R(h);S_CUTB(i)::QAB1(J)
- B(g);N_GUARD::S(H)
- B(i);N_GUARD::QAB1(J),XB(i)
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).