MESON Chess Problem Database
Problem Display
PID: 157362 (8/p2K1N1B/2R5/r2k4/6R1/1P4pN/2nP1b1Q/1b1r1q2 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Best Problems, 2008
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Qxg2#
- 1...Qc4
- 2.bxc4#
- 1...Qb5
- 2.Qg2#
- 1...Qa6
- 2.Qg2#
- 1...Rc5
- 2.Rd6#
- 1...Bd4
- 2.Be4#
- 1...Sd4
- 2.Sf4#
- 1...g2
- 2.Qe5#
- 2.Qd6#
- 1...Qg2
- Tries
- 1.Rcc4?
- threat
- 2.Sf4#
- 2.Be4#
- 2.Rg5#
- 1...Qxh3
- 2.Be4#
- 1...Qe2
- 2.Sf4#
- 1...Qg2
- 2.Sf4#
- 2.Rg5#
- 2.Qxg2#
- 1...Qd3
- 2.Sf4#
- 1...Qe1
- 2.Sf4#
- 1...Qh1
- 2.Sf4#
- 2.Rg5#
- 1...Re1
- 2.Sf4#
- 1...Be1
- 2.Be4#
- 1...Bg1
- 2.Be4#
- 1...Be3
- 2.Be4#
- 1...Bd4
- 2.Be4#
- 1...Bc5
- 2.Be4#
- 1...Bb6
- 2.Be4#
- 1...Sa1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sa3
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 2.Rgd4#
- 1...Sb4
- 2.Sf4#
- 1...Sd4
- 2.Sf4#
- 1...Qxc4!
- threat
- 1.Qxg3?
- threat
- 2.Qe5#
- 2.Qd6#
- 2.Qf3#
- 1...Qxh3
- 2.Qe5#
- 2.Qd6#
- 1...Qe2
- 2.Qd6#
- 1...Qg2
- 2.Qe5#
- 2.Qd6#
- 2.Qxg2#
- 1...Qd3
- 2.Qe5#
- 2.Qd6#
- 1...Qc4
- 2.Qe5#
- 2.Qd6#
- 2.bxc4#
- 1...Qe1
- 2.Qd6#
- 1...Qh1
- 2.Qe5#
- 2.Qd6#
- 1...Re1
- 2.Qd6#
- 1...Ra4
- 2.Qe5#
- 2.Qd6#
- 1...Be1
- 2.Qe5#
- 2.Qd6#
- 1...Bg1
- 2.Qe5#
- 2.Qd6#
- 1...Be3
- 2.Qe5#
- 2.Qd6#
- 1...Bd4
- 2.Be4#
- 2.Qd6#
- 1...Bc5
- 2.Qe5#
- 1...Bb6
- 2.Qe5#
- 2.Qd6#
- 1...Sa1
- 2.Qe5#
- 2.Qd6#
- 1...Se1
- 2.Qe5#
- 2.Qd6#
- 1...Sa3
- 2.Qe5#
- 2.Qd6#
- 1...Se3
- 2.Qe5#
- 2.Qd6#
- 1...Sb4
- 2.Qe5#
- 2.Qd6#
- 1...Sd4
- 2.Sf4#
- 2.Qe5#
- 2.Qd6#
- 1...Bxg3!
- threat
- 1.Rcc4?
- Keys
- 1.d4!
- threat
- 2.Rd6#
- 1...Rxd4
- 2.Rg5#
- 1...Bxd4
- 2.Be4#
- 1...Sxd4
- 2.Sf4#
- 1...Qb5
- 2.Qg2#
- 1...Qa6
- 2.Qg2#
- 1...Ra6
- 2.Rc5#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- Q(c);N_GUARD::QAB(B),XQ(c)
- Q(c);OGATE::P(C),XQ(c)
- Q(c);N_GUARD,P_PINR(F)::QAB(B)
- Q(c);N_GUARD::QAB(B)
- R(g);SBLOCK::R1(F)
- B(e);SBLOCK::B(I)
- S(d);SBLOCK::S(D)
- Tries
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- Q(c);P_PINR(E),XS(D)::B(I)
- Q(c);::S(D)
- R(b);::S(D)
- B(e);::B(I)
- S(d);::S(D)
- Refutation
- Q(c);XR(F)
- Try
- Q(B);XP(f)
- Threat
- DUALS(3)
- Vars
- Q(c);::QAR1(B)
- R(b);::QAR1(B)
- B(e);::QAR1(B)
- Refutation
- B(e);XQ(B)
- Try
- Actual
- P(A);
- Threat
- R1(F)
- Vars
- R(b);SBLOCK,XP(A)::R(E)
- B(e);SBLOCK,XP(A)::B(I)
- S(d);SBLOCK,XP(A)::S(D)
- Q(c);N_GUARD,P_PINR(F)::QAB(B)
- Q(c);N_GUARD::QAB(B)
- R(g);N_GUARD::R1(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).