MESON Chess Problem Database
Problem Display
PID: 75867 (2N1r3/p1p3Q1/K1p5/NPk1bn1R/2B2p2/P1P5/8/1b6 w - - 0 1)
Willmott, Arthur
Problem Observer, 2008
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxc8
- 2.Qxe5#
- 1...Rf8
- 2.Qxe5#
- 1...Rg8
- 2.Qxe5#
- 1...Rh8
- 2.Qxe5#
- 1...Bd4
- 2.Qxd4#
- 2.cxd4#
- 1...Bd6
- 2.Qd4#
- 1...Sh4
- 2.Qg1#
- 1...Sd6
- 2.Qg1#
- 1...Sh6
- 2.Qg1#
- 1...Se7
- 2.Qg1#
- 1...Rxc8
- Tries
- 1.Bb3?
- threat
- 2.Sb7#
- 1...Sd6
- 2.Qg1#
- 1...cxb5!
- threat
- 1.Be6?
- threat
- 2.Sb3#
- 2.Sb7#
- 2.Qxe5#
- 1...Rxc8
- 2.Sb7#
- 2.Qxe5#
- 1...Bxc3
- 2.Sb3#
- 2.Sb7#
- 2.Qxc3#
- 1...Bxg7
- 2.Sb3#
- 2.Sb7#
- 1...Sxg7
- 2.Sb3#
- 2.Sb7#
- 2.Rxe5#
- 1...cxb5
- 2.Qxe5#
- 1...Rd8
- 2.Sb3#
- 2.Sb7#
- 1...Ba2
- 2.Sb7#
- 1...Bc2
- 2.Sb7#
- 2.Qxe5#
- 1...Be4
- 2.Sb3#
- 2.Sb7#
- 1...Bd4
- 2.Sb3#
- 2.Sb7#
- 2.Qxd4#
- 2.cxd4#
- 1...Bd6
- 2.Sb3#
- 2.Sb7#
- 2.Qd4#
- 2.Qg1#
- 1...Bf6
- 2.Sb3#
- 2.Sb7#
- 1...Se3
- 2.Sb3#
- 2.Sb7#
- 1...Sd4
- 2.Sb7#
- 2.Rxe5#
- 2.Qxe5#
- 1...Sd6
- 2.Sb3#
- 2.Rxe5#
- 2.Qxe5#
- 2.Qg1#
- 1...Se7
- 2.Sb3#
- 2.Sb7#
- 2.Qg1#
- 1...Rxe6!
- threat
- 1.Qg1+?
- 1...Bd4
- 2.Qxd4#
- 2.cxd4#
- 1...Sd4
- 2.Qxd4#
- 2.cxd4#
- 1...Se3!
- 1...Bd4
- 1.Qxc7?
- threat
- 2.Qxc6#
- 2.Qxa7#
- 1...Rxc8
- 2.Qxe5#
- 1...Bxc3
- 2.Qd6#
- 2.Qxa7#
- 1...Re6
- 2.Qxa7#
- 1...Re7
- 2.Qxc6#
- 1...Be4
- 2.Qxa7#
- 1...Sd4
- 2.Qd6#
- 2.Qxa7#
- 1...Se7
- 2.Qd6#
- 2.Qxa7#
- 1...Bxc7!
- threat
- 1.Qf7?
- threat
- 2.Sb3#
- 2.Sb7#
- 1...Rxc8
- 2.Sb7#
- 1...Bxc3
- 2.Sb3#
- 1...cxb5
- 2.Qd5#
- 1...Ba2
- 2.Sb7#
- 1...Bc2
- 2.Sb7#
- 1...Sd4
- 2.Sb7#
- 1...Sd6
- 2.Sb3#
- 1...Re6!
- threat
- 1.Bb3?
- Keys
- 1.Sd6!
- threat
- 2.Sab7#
- 2.Sdb7#
- 1...Kxd6
- 2.Sb7#
- 1...Bxd6
- 2.Qd4#
- 1...Sxd6
- 2.Qg1#
- 1...cxb5
- 2.Sdb7#
- 2.Qxc7#
- 1...cxd6
- 2.Qxa7#
- 1...Rb8
- 2.Qxe5#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(i);N_GUARD,XS(I)::QAR2(H),XB(d)
- R(i);N_GUARD::QAR2(H),XB(d)
- B(d);OGATE,P_SPINS(e)::QAB1(H)
- S(e);N_GUARD,P_SPINB(d)::QAB(H)
- Tries
- Try
- B(C);
- Threat
- S(D)
- Vars
- S(e);N_GUARD,P_SPINB(d)::QAB(H)
- Refutation
- P(f);XP(E)
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- P(f);XP(E)::QAR2(H),XB(d)
- B(a);::S(D)
- Refutation
- R(i);XB(C)
- Try
- Q(H);CHECK
- Refutation
- S(e);P_SPINB(d),P_SPINS(e)
- Try
- Q(H);P_PINP(f),XP(h)
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD,XS(I)::QAR2(H),XB(d)
- R(i);::QAB(H),XP(g)
- R(i);::QAR1(H),XP(f)
- B(a);::QAB(H),XP(g)
- Refutation
- B(d);N_SPINP(f),P_SPINS(e),XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(i);XS(I)::S(D)
- B(d);P_SPINS(e),XP(B)::S(D)
- P(f);N_GUARD,XP(E)::QAR1(H)
- B(a);::S(D)
- S(e);P_SPINB(d)::S(D)
- Refutation
- R(i);
- Try
- Actual
- S(I);
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT,XS(I)::S(D)
- B(d);OGATE,P_SPINS(e),XS(I)::QAB1(H)
- S(e);N_GUARD,P_SPINB(d),SBLOCK,XS(I)::QAB(H)
- P(h);OGATE,SBLOCK,XS(I)::QAB(H),XP(g)
- R(i);N_GUARD::QAR2(H),XB(d)
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).