MESON Chess Problem Database
Problem Display
PID: 16675 (6B1/3nKp2/5Pb1/3p1kpp/3Pp3/6QP/5p1B/5r2 w - - 0 1)
Stewart, John
Chess, 1942
#2
7 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxf2#
- 1...Rb1
- 2.Qxf2#
- 1...Rc1
- 2.Qxf2#
- 1...Rd1
- 2.Qxf2#
- 1...Re1
- 2.Qxf2#
- 1...Rg1
- 2.Qxf2#
- 1...Rh1
- 2.Qxf2#
- 1...Bh7
- 2.Bxh7#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sxf6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...e3
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...h4
- 2.Qg4#
- 1...Ra1
- Tries
- 1.Kxd7?
- threat
- 2.Qe5#
- 1...Kxf6
- 2.Qe5#
- 1...Bh7!
- threat
- 1.Bh7?
- 1...Sxf6
- 2.Qe5#
- 1...e3
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...Ra1
- 2.Qxf2#
- 1...Rb1
- 2.Qxf2#
- 1...Rc1
- 2.Qxf2#
- 1...Rd1
- 2.Qxf2#
- 1...Re1
- 2.Qxf2#
- 1...Rg1
- 2.Qxf2#
- 1...Rh1
- 2.Qxf2#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...h4
- 2.Qg4#
- 1...Bxh7!
- 1...Sxf6
- 1.Qd6?
- threat
- 2.Qxd7#
- 1...Sxf6
- 2.Qe5#
- 2.Qxf6#
- 1...Bh7
- 2.Bxh7#
- 1...g4
- 2.Qf4#
- 1...Sc5
- 2.Qe5#
- 2.Qxd5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 2.Qxd5#
- 1...Sf8
- 2.Qe5#
- 2.Qxd5#
- 1...e3!
- threat
- 1.h4?
- threat
- 2.Qxg5#
- 1...gxh4
- 2.Qf4#
- 1...e3
- 2.Qf3#
- 1...g4
- 2.Qf4#
- 1...Rg1!
- threat
- 1.Kxd7?
- Keys
- 1.Qc7!
- threat
- 2.Qxd7#
- 1...Sxf6
- 2.Qe5#
- 1...Bh7
- 2.Bxh7#
- 1...e3
- 2.Qc2#
- 1...g4
- 2.Qf4#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::QAR(B),XP(b)
- B(h);OGATEB::B(G),XB(h)
- S(i);N_GUARD::QAR1(B)
- S(i);N_GUARD::QAR1(B),XS(i)
- S(i);N_GUARD,XP(E)::QAR1(B)
- P(c);N_GUARD::QAR2(B)
- P(f);N_GUARD::QAR1(B)
- P(g);N_GUARD::QAB1(B)
- Tries
- Try
- K(F);P-FLIGHT,XS(i)
- Threat
- QAR1(B)
- Vars
- K(e);P-FLIGHT,XP(E)::QAB1(B)
- Refutation
- B(h);
- Try
- B(G);P_PINB(h)
- Vars
- S(i);N_GUARD,XP(E)::QAR1(B)
- P(c);N_GUARD::QAR2(B)
- P(f);N_GUARD::QAR1(B)
- R(a);N_GUARD::QAR(B),XP(b)
- S(i);N_GUARD::QAR1(B)
- S(i);N_GUARD::QAR1(B),XS(i)
- P(g);N_GUARD::QAB1(B)
- Refutation
- B(h);N_SPINB(h),XB(G)
- Try
- Q(B);
- Threat
- QAB(B),XS(i)
- Vars
- B(h);OGATEB::B(G),XB(h)
- P(f);N_GUARD::QAR1(B)
- S(i);N_GUARD::QAR1(B),XS(i)
- S(i);N_GUARD::QAR1(B)
- Refutation
- P(c);
- Try
- P(C);
- Threat
- QAR1(B),XP(f)
- Vars
- P(f);N_GUARD,XP(C)::QAR1(B)
- P(c);N_GUARD::QAR2(B)
- P(f);N_GUARD::QAR1(B)
- Refutation
- R(a);
- Try
- Actual
- Q(B);
- Threat
- QAB(B),XS(i)
- Vars
- S(i);N_GUARD,XP(E)::QAR1(B)
- B(h);OGATEB::B(G),XB(h)
- P(c);OGATEB::QAB(B)
- P(f);N_GUARD::QAR1(B)
- S(i);N_GUARD::QAR1(B)
- S(i);N_GUARD::QAR1(B),XS(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).