MESON Chess Problem Database
Problem Display
PID: 7597 (2n5/1pK5/p3p3/RrkbQ1nR/3N1p2/1P1p1B2/N4q2/6B1 w - - 0 1)
Saunders, Denis M
The Problemist, 1991
#2
9 + 11
| 3936 | The Wizard of Oz | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sxe6#
- 1...Qg3
- 2.Sxe6#
- 1...Qxd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Qh4
- 2.Sxe6#
- 1...Qf1
- 2.Sxe6#
- 1...Qxa2
- 2.Sc2#
- 1...Qb2
- 2.Sxe6#
- 1...Qc2
- 2.Sxc2#
- 2.Se2#
- 2.Sxe6#
- 1...Qd2
- 2.Sxe6#
- 1...Qe2
- 2.Sxe2#
- 2.Sxe6#
- 1...Qg2
- 2.Sxe6#
- 1...Qh2
- 2.Sxe6#
- 1...Qxf3
- 2.Sxf3#
- 2.Sxe6#
- 1...Sxf3
- 2.Sxe6#
- 1...Sh3
- 2.Sxe6#
- 1...Se4
- 2.Sxe6#
- 1...Sf7
- 2.Sxe6#
- 1...Sh7
- 2.Sxe6#
- 1...Qe1
- Tries
- 1.Bxf2?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Sxe6#
- 1...Sxf3
- 2.Sxf3#
- 2.Sxe6#
- 1...Sh3
- 2.Sxe6#
- 1...Se4
- 2.Sxe6#
- 1...Rxa5!
- threat
- 1.Bxd5?
- threat
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bxb7#
- 2.b4#
- 1...Qxa2
- 2.Sc2#
- 1...Qe1
- 2.Sxe6#
- 2.Be4#
- 1...Qe3
- 2.Be4#
- 2.b4#
- 1...Qb2
- 2.Sxe6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bxb7#
- 1...Qd2
- 2.Sxe6#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bxb7#
- 1...Qe2
- 2.Sxe2#
- 2.Sxe6#
- 2.Be4#
- 2.b4#
- 1...Qg2
- 2.Sxe6#
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.b4#
- 1...Qf3
- 2.Sxf3#
- 2.Sxe6#
- 2.Bxf3#
- 2.Be4#
- 2.b4#
- 1...Sf3
- 2.Sxe6#
- 2.Bxf3#
- 2.b4#
- 1...Se4
- 2.Sxe6#
- 2.Bc4#
- 2.Bxe4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bxb7#
- 2.b4#
- 1...Sf7
- 2.Sxe6#
- 2.b4#
- 1...Sb6
- 2.b4#
- 1...Se7
- 2.b4#
- 1...f3
- 2.Bxf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bxb7#
- 2.b4#
- 1...b6
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Bc4#
- 2.Be4#
- 2.Bc6#
- 2.Bxe6#
- 2.Bb7#
- 2.Ba8#
- 2.b4#
- 1...exd5!
- threat
- 1.Rxg5?
- threat
- 2.Sxe6#
- 1...Qxd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Qxa2
- 2.Sc2#
- 1...Rxa5!
- threat
- 1.Qd6+?
- 1...Kxd4
- 2.Bxf2#
- 1...Sxd6!
- 1...Kxd4
- 1.Bxf2?
- Keys
- 1.Qxe6!
- threat
- 2.Qxd5#
- 1...Sxe6+
- 2.Sxe6#
- 1...Kxd4
- 2.Bxf2#
- 1...Qxa2
- 2.Sc2#
- 1...Qxf3
- 2.Sxf3#
- 1...Bxb3
- 2.Sxb3#
- 1...Bxf3
- 2.Qc4#
- 1...Bxe6
- 2.Sxe6#
- 1...Bc4
- 2.Qxc4#
- 1...Be4
- 2.Qc4#
- 1...Bc6
- 2.Qc4#
- 1...Sb6
- 2.Qxb6#
- 1...Se7
- 2.Qb6#
- threat
- 1.Qxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 13
- Sets
- Q(a);::B(A)+S(E),DCHECK,XP(i)
- Q(a);XS(B)::B(A)+S(E)
- S(g);N_GUARD,XB(D)::S(E),XP(i)
- S(g);N_GUARD::S(E),XP(i)
- Tries
- Try
- B(A);XQ(a)
- Threat
- DUALS(6)
- Vars
- S(g);::B(A)+S(E),DCHECK,XP(i)
- Refutation
- R(d);N_SPINR(d),XR(F)
- Try
- B(D);XB(f)
- Threat
- DUALS(9)
- Vars
- Q(a);XS(B)::B(A)+S(E)
- S(k);::P(C)
- Refutation
- P(i);P_SPINP(i),XB(D)
- Try
- R(H);XS(g)
- Threat
- S(E),XP(i)
- Vars
- Q(a);XS(B)::B(A)+S(E)
- Refutation
- R(d);N_SPINR(d),XR(F)
- Try
- Q(G);CHECK,N_PINB(f)
- Vars
- K(e);N_SPINR(d),P_SPINB(f),P_SPINQ(a),S_FLIGHT,XS(E)::B(A),XQ(a)
- Refutation
- S(k);XQ(G)
- Try
- Actual
- Q(G);N_PINB(f),XP(i)
- Threat
- QAR1(G),XB(f)
- Vars
- S(g);CHECK,P_SPINB(f),XQ(G)::S(E),XS(g)
- K(e);N_SPINR(d),OGATEB,P_SPINQ(a),S_FLIGHT,XS(E)::B(A),XQ(a)
- Q(a);XS(B)::B(A)+S(E)
- Q(a);XB(D)::B(A)+S(E),XQ(a)
- B(f);P_SPINS(g),XP(C)::S(E),XB(f)
- B(f);OGATE,P_SPINS(g),XB(D)::QAR1(G)
- B(f);P_SPINS(g),XQ(G)::S(E),XB(f)
- B(f);OGATE,P_SPINS(g)::QAR1(G),XB(f)
- B(f);OGATE,P_SPINS(g)::QAR1(G)
- S(k);N_GUARD::QAB1(G),XS(k)
- S(k);N_GUARD::QAB1(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).