MESON Chess Problem Database
Problem Display
PID: 59311 (K2R4/nP1Q3b/pB1Pp1n1/r2kN2r/6p1/6bq/4R3/1B3N2 w - - 0 1)
Bourd, Evgeny
Variantim, 2004
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Bxa2#
- 1...Sxe5
- 2.Se3#
- 1...Se7
- 2.dxe7#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Sc8
- 2.Qc6#
- 1...Ra2
- Tries
- 1.Qa4?
- threat
- 2.Ba2#
- 2.Qd1#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Qxf1
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rxe5
- 2.Ba2#
- 2.Rd2#
- 1...Bxe5
- 2.Be4#
- 2.Qe4#
- 1...Sxe5
- 2.Se3#
- 1...Qg2
- 2.Ba2#
- 2.Qd1#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Qh1
- 2.Ba2#
- 2.Qd1#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Rb5
- 2.Qd1#
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Rc5
- 2.Qd1#
- 2.Qe4#
- 1...Be1
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Bf2
- 2.Qc4#
- 2.Qe4#
- 1...Bh2
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Bf4
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Bh4
- 2.Qc4#
- 2.Qd4#
- 2.Qe4#
- 1...Sf4
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Sh4
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Se7
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 2.dxe7#
- 1...Sf8
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Sh8
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qd4#
- 1...Sb5
- 2.Ba2#
- 2.Qb3#
- 2.Qc4#
- 2.Qe4#
- 1...Sc6
- 2.Ba2#
- 2.Qb3#
- 2.Qxc6#
- 2.Qc4#
- 2.Qe4#
- 1...Rxa4!
- threat
- 1.Qc8?
- threat
- 2.Qc4#
- 1...Rxe5
- 2.Rd2#
- 1...Bxe5
- 2.Be4#
- 1...Sxe5
- 2.Se3#
- 1...Rc5
- 2.Qxc5#
- 1...Ra4
- 2.Qc5#
- 1...Sc6
- 2.Qxc6#
- 1...Sxc8!
- threat
- 1.Qa4?
- Keys
- 1.Qc7!
- threat
- 2.Qc4#
- 1...Rxe5
- 2.Rd2#
- 1...Bxe5
- 2.Be4#
- 1...Sxe5
- 2.Se3#
- 1...Rc5
- 2.Qxc5#
- 1...Ra4
- 2.Qc5#
- 1...Sc6
- 2.Qxc6#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(d);N_GUARD::B(A),XR(d)
- S(i);SBLOCK,XS(D)::S(B)
- S(i);OGATE::QAR(H)+P(F),XS(i)
- S(j);N_GUARD::QAB1(H)
- S(j);N_GUARD::QAB1(H),XS(j)
- Tries
- Try
- Q(H);
- Threat
- DUALS(6)
- Vars
- S(i);SBLOCK,XS(D)::S(B)
- Refutation
- R(d);XQ(H)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- R(f);SBLOCK,XS(D)::R(C)
- B(a);SBLOCK,XS(D)::B(A)
- S(i);SBLOCK,XS(D)::S(B)
- R(d);N_GUARD::QAR1(H),XR(d)
- R(d);N_GUARD::QAR1(H)
- S(j);N_GUARD::QAB1(H),XS(j)
- Refutation
- S(j);XQ(H)
- Try
- Actual
- Q(H);
- Threat
- QAB1(H)
- Vars
- R(f);SBLOCK,XS(D)::R(C)
- B(a);SBLOCK,XS(D)::B(A)
- S(i);SBLOCK,XS(D)::S(B)
- R(d);N_GUARD::QAR1(H),XR(d)
- R(d);N_GUARD::QAR1(H)
- S(j);N_GUARD::QAB1(H),XS(j)
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).