MESON Chess Problem Database
Problem Display
PID: 250412 (8/4n3/3p2R1/1R1p4/2Nk1r2/5P2/2QP3B/b5K1 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Uralski Problemist, 2009
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Rg4+
- 2.Rxg4#
- 1...Bc3
- 2.Qxc3#
- 1...Rg4+
- Tries
- 1.Sb2?
- threat
- 2.Qc3#
- 1...Rg4+
- 2.Rxg4#
- 1...Ke5
- 2.Qe4#
- 1...Rxf3
- 2.Rb4#
- 2.Qa4#
- 1...Bxb2!
- threat
- 1.Se3?
- 1...Rg4+
- 2.Rxg4#
- 1...Ke5
- 2.Qe4#
- 1...Rxf3
- 2.Rb4#
- 1...Sxg6
- 2.Rxd5#
- 1...Re4
- 2.Rb4#
- 1...Rh4
- 2.Rb4#
- 1...Rf5
- 2.Rb4#
- 1...Rf6
- 2.Rb4#
- 1...Rf7
- 2.Rb4#
- 1...Rf8
- 2.Rb4#
- 1...Bc3
- 2.Qxc3#
- 1...Sf5
- 2.Rxd5#
- 1...Sc6
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...Sg8
- 2.Rxd5#
- 1...Bb2!
- 1...Rg4+
- 1.Sa5?
- 1...Rg4+
- 2.Rxg4#
- 1...Ke5
- 2.Qe4#
- 1...Rxf3
- 2.Rb4#
- 1...Sxg6
- 2.Sc6#
- 1...Re4
- 2.Sb3#
- 2.Rb4#
- 1...Rh4
- 2.Sb3#
- 2.Rb4#
- 1...Rf5
- 2.Sb3#
- 2.Rb4#
- 1...Rf6
- 2.Sb3#
- 2.Rb4#
- 1...Rf7
- 2.Sb3#
- 2.Rb4#
- 1...Rf8
- 2.Sb3#
- 2.Rb4#
- 1...Bc3
- 2.Qxc3#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Bb2!
- 1...Rg4+
- 1.Sb6?
- 1...Rg4+
- 2.Rxg4#
- 1...Ke5
- 2.Qe4#
- 1...Rxf3
- 2.Rb4#
- 1...Sxg6
- 2.Rxd5#
- 1...Re4
- 2.Rb4#
- 1...Rh4
- 2.Rb4#
- 1...Rf5
- 2.Rb4#
- 1...Rf6
- 2.Rb4#
- 1...Rf7
- 2.Rb4#
- 1...Rf8
- 2.Rb4#
- 1...Bc3
- 2.Qxc3#
- 1...Sf5
- 2.Rxd5#
- 1...Sc6
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...Sg8
- 2.Rxd5#
- 1...Bb2!
- 1...Rg4+
- 1.Bxf4?
- threat
- 2.Be3#
- 1...Bc3
- 2.Qxc3#
- 1...Sf5!
- threat
- 1.Sb2?
- Keys
- 1.Se5!
- 1...Rg4+
- 2.Rxg4#
- 1...Kxe5
- 2.Qe4#
- 1...Rxf3
- 2.Sxf3#
- 2.Rb4#
- 2.Qa4#
- 1...Sxg6
- 2.Sc6#
- 1...dxe5
- 2.Rb4#
- 1...Re4
- 2.Rb4#
- 2.Qd3#
- 2.Qa4#
- 1...Rh4
- 2.Rb4#
- 2.Qd3#
- 2.Qa4#
- 1...Rf5
- 2.Rb4#
- 2.Qd3#
- 2.Qa4#
- 1...Rf6
- 2.Rb4#
- 2.Qd3#
- 2.Qa4#
- 1...Rf7
- 2.Rb4#
- 2.Qd3#
- 2.Qa4#
- 1...Rf8
- 2.Rb4#
- 2.Qd3#
- 2.Qa4#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Sf5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...Sg8
- 2.Sc6#
- 1...Rg4+
- 1.Se5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(c);CHECK,OGATEB::R(H),XR(c)
- B(a);N_GUARD::QAB1(B),XB(a)
- Tries
- Try
- S(F);
- Threat
- QAB1(B)
- Vars
- R(c);CHECK,OGATEB::R(H),XR(c)
- K(b);P_SPINP(d),P_SPINR(c),S_FLIGHT::QAR1(B)
- Refutation
- B(a);XS(F)
- Try
- S(F);
- Vars
- R(c);CHECK,OGATEB::R(H),XR(c)
- K(b);P_SPINP(d),P_SPINR(c),S_FLIGHT::QAR1(B)
- R(c);XP(E)::R(G)
- S(f);N_GUARD,XR(H)::R1(G),XP(d)
- R(c);::R(G)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(f);N_GUARD::R1(G),XP(d)
- Refutation
- B(a);
- Try
- S(F);
- Vars
- R(c);CHECK,OGATEB::R(H),XR(c)
- K(b);P_SPINP(d),P_SPINR(c),S_FLIGHT::QAR1(B)
- R(c);XP(E)::R(G)
- S(f);N_GUARD,XR(H)::S(F)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(f);N_GUARD::S(F)
- S(f);N_GUARD::S(F),XS(f)
- Refutation
- B(a);
- Try
- S(F);
- Vars
- R(c);CHECK,OGATEB::R(H),XR(c)
- K(b);P_SPINP(d),P_SPINR(c),S_FLIGHT::QAR1(B)
- R(c);XP(E)::R(G)
- S(f);N_GUARD,XR(H)::R1(G),XP(d)
- R(c);::R(G)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(f);N_GUARD::R1(G),XP(d)
- Refutation
- B(a);
- Try
- B(D);XR(c)
- Threat
- B(D)
- Vars
- B(a);N_GUARD::QAB1(B),XB(a)
- Refutation
- S(f);
- Try
- Actual
- S(F);
- Vars
- R(c);CHECK,OGATEB::R(H),XR(c)
- K(b);P_SPINP(d),P_SPINR(c),S_FLIGHT,XS(F)::QAR1(B)
- S(f);N_GUARD,XR(H)::S(F)
- P(e);SBLOCK,XS(F)::R(G)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);N_GUARD::QAB1(B),XB(a)
- S(f);N_GUARD::S(F)
- S(f);N_GUARD::S(F),XS(f)
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).