MESON Chess Problem Database
Problem Display
PID: 193304 (6K1/B2p4/1n1Q4/3NP2R/n3k1P1/1r1NPp2/B2bPp2/3R1r2 w - - 0 1)
Ojanen, Antti Gottfried
Suomen Shakki, 1984
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Sxf2#
- 1...Re1
- 2.Sxf2#
- 1...Rg1
- 2.Sxf2#
- 1...Rh1
- 2.Sxf2#
- 1...Rb1
- 2.Qg6#
- 1...Rb2
- 2.Qg6#
- 1...Ra3
- 2.Qg6#
- 1...Rc3
- 2.Qg6#
- 1...Rxd3
- 2.Qg6#
- 1...Rb4
- 2.Qg6#
- 1...Rb5
- 2.Qg6#
- 1...Bxe3
- 2.Sf6#
- 1...Sb2
- 2.Sc5#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc4
- 2.Sf6#
- 1...Sxd5
- 2.Qg6#
- 1...Sa8
- 2.Sf6#
- 1...Sc8
- 2.Sf6#
- 1...Rxd1
- Tries
- 1.Bxb3?
- threat
- 2.Qg6#
- 1...Bxe3
- 2.Sf6#
- 1...Sc4
- 2.Sf6#
- 1...fxe2!
- threat
- 1.Rxd2?
- 1...Rxd3
- 2.Qg6#
- 2.exd3#
- 1...Sxd5
- 2.Qg6#
- 1...Ra1
- 2.Sxf2#
- 1...Rfb1
- 2.Sxf2#
- 1...Rc1
- 2.Sxf2#
- 1...Rd1
- 2.Sxf2#
- 1...Re1
- 2.Sxf2#
- 1...Rg1
- 2.Sxf2#
- 1...Rh1
- 2.Sxf2#
- 1...Rbb1
- 2.Qg6#
- 1...Rb2
- 2.Qg6#
- 1...Ra3
- 2.Qg6#
- 1...Rc3
- 2.Qg6#
- 1...Rb4
- 2.Qg6#
- 1...Rb5
- 2.Qg6#
- 1...Sb2
- 2.Sc5#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc4
- 2.Sf6#
- 1...Sa8
- 2.Sf6#
- 1...Sc8
- 2.Sf6#
- 1...fxe2!
- 1...Rxd3
- 1.e6?
- threat
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...Bxe3
- 2.Sf6#
- 2.Qe5#
- 1...Sxd5
- 2.Re5#
- 2.Qe5#
- 2.Qxd5#
- 1...Bc3
- 2.Qf4#
- 1...Sc4
- 2.Sf6#
- 2.Qf4#
- 1...fxe2!
- threat
- 1.Bxb3?
- Keys
- 1.Rh3!
- 1...Rxd1
- 2.Sxf2#
- 1...Rxd3
- 2.exf3#
- 1...Bxe3
- 2.Sf6#
- 1...Sxd5
- 2.Qg6#
- 1...fxe2
- 2.Sf6#
- 1...Bc1
- 2.exf3#
- 1...Re1
- 2.Sxf2#
- 1...Rg1
- 2.Sxf2#
- 1...Rh1
- 2.Sxf2#
- 1...Rb1
- 2.Qg6#
- 1...Rb2
- 2.Qg6#
- 1...Ra3
- 2.Qg6#
- 1...Rc3
- 2.Qg6#
- 1...Rb4
- 2.Qg6#
- 1...Rb5
- 2.Qg6#
- 1...Be1
- 2.exf3#
- 1...Bc3
- 2.exf3#
- 1...Bb4
- 2.exf3#
- 1...Ba5
- 2.exf3#
- 1...Sb2
- 2.Sc5#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc4
- 2.Sf6#
- 1...Sa8
- 2.Sf6#
- 1...Sc8
- 2.Sf6#
- 1...Rxd1
- 1.Rh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,XR(A)::S(D),XP(c)
- R(a);N_GUARD::S(D),XP(c)
- R(a);N_GUARD,P_PINP(F)::S(D),XP(c)
- R(d);::QAB(J)
- R(d);XS(D)::QAB(J)
- B(b);SBLOCK,XP(E)::S(G)
- S(f);N_GUARD::S(D)
- S(f);N_GUARD::S(D),XS(f)
- S(h);::S(G)
- S(h);SBLOCK,XS(G)::QAB(J)
- Tries
- Try
- B(B);XR(d)
- Threat
- QAB(J)
- Vars
- B(b);SBLOCK,XP(E)::S(G)
- S(h);::S(G)
- Refutation
- P(e);XP(C)
- Try
- R(A);XB(b)
- Vars
- S(h);SBLOCK,XS(G)::QAB(J)
- R(a);N_GUARD::S(D),XP(c)
- R(a);N_GUARD,P_PINP(F)::S(D),XP(c)
- R(d);::QAB(J)
- S(f);N_GUARD::S(D)
- S(f);N_GUARD::S(D),XS(f)
- S(h);::S(G)
- Refutation
- P(e);XP(C)
- Try
- P(H);
- Threat
- DUALS(3)
- Vars
- B(b);::QAR1(J)
- Refutation
- P(e);XP(C)
- Try
- Actual
- R(I);
- Vars
- R(a);N_GUARD,XR(A)::S(D),XP(c)
- R(d);SBLOCK,XS(D)::P(C),XP(e)
- B(b);SBLOCK,XP(E)::S(G)
- S(h);SBLOCK,XS(G)::QAB(J)
- P(e);XP(C)::S(G)
- B(b);::P(C),XP(e)
- R(a);N_GUARD::S(D),XP(c)
- R(a);N_GUARD,P_PINP(F)::S(D),XP(c)
- R(d);::QAB(J)
- S(f);N_GUARD::S(D)
- S(f);N_GUARD::S(D),XS(f)
- S(h);::S(G)
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).