MESON Chess Problem Database
Problem Display
PID: 44347 (2R2n2/2N5/B1qp2p1/P1kp2P1/p2R4/5K2/1n1P4/B1N4Q w - - 0 1)
Studd, Alnod Ernest
Lebanon Herald, 0000
#2
11 + 8
| 135 | The Westminster Papers | 1878 |
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 1...Qb7
- 2.Se6#
- 1...Qd7
- 2.Se6#
- 1...Qa8
- 2.Se6#
- 1...Qe8
- 2.Se6#
- 1...Qb6
- 2.Se6#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sc4
- 2.Sd3#
- 1...Se6
- 2.Sxe6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...a3
- 2.Sb3#
- 1...Qb5
- Tries
- 1.Kg3?
- 1...Qxa6
- 2.Qxd5#
- 1...Qxc7
- 2.Qxd5#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 2.Qxd5#
- 1...Qb7
- 2.Se6#
- 1...Qd7
- 2.Se6#
- 2.Qxd5#
- 1...Qa8
- 2.Se6#
- 1...Qe8
- 2.Se6#
- 2.Qxd5#
- 1...Qb6
- 2.Se6#
- 2.Qxd5#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sc4
- 2.Sd3#
- 1...Se6
- 2.Sxe6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...a3
- 2.Sb3#
- 1...Kxd4!
- 1...Qxa6
- 1.Kg4?
- 1...Qd7+
- 2.Se6#
- 1...Qxa6
- 2.Qxd5#
- 1...Qxc7
- 2.Qxd5#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 2.Qxd5#
- 1...Qb7
- 2.Se6#
- 1...Qa8
- 2.Se6#
- 1...Qe8
- 2.Se6#
- 2.Qxd5#
- 1...Qb6
- 2.Se6#
- 2.Qxd5#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sc4
- 2.Sd3#
- 1...Se6
- 2.Sxe6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...a3
- 2.Sb3#
- 1...Kxd4!
- 1...Qd7+
- 1.Sd3+?
- 1...Kxd4
- 2.Qg1#
- 2.Qh4#
- 2.Qh8#
- 1...Sxd3!
- 1...Kxd4
- 1.Bxb2?
- threat
- 2.Sd3#
- 1...Qxc7
- 2.Rxc7#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 1...Qb7
- 2.Se6#
- 1...Qd7
- 2.Se6#
- 1...Qa8
- 2.Se6#
- 2.Sxa8#
- 1...Qe8
- 2.Se6#
- 2.Sxe8#
- 1...Qb6
- 2.Se6#
- 1...Qxa6!
- threat
- 1.Rc4+?
- 1...Sxc4
- 2.Sd3#
- 1...dxc4+!
- 1...Sxc4
- 1.Qg1?
- threat
- 2.Rc4#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 1...Sc4
- 2.Sd3#
- 2.Rxc4#
- 1...Qxa6!
- threat
- 1.Qh4?
- 1...Qxc7
- 2.Rxc7#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 1...Qb7
- 2.Se6#
- 1...Qd7
- 2.Se6#
- 1...Qa8
- 2.Se6#
- 2.Sxa8#
- 1...Qe8
- 2.Se6#
- 2.Sxe8#
- 1...Qb6
- 2.Se6#
- 1...Sc4
- 2.Sd3#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Se6
- 2.Sxe6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...a3
- 2.Sb3#
- 1...Qxa6!
- 1...Qxc7
- 1.Qh8?
- 1...Qxc7
- 2.Rxc7#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 1...Qb7
- 2.Se6#
- 1...Qd7
- 2.Se6#
- 1...Qa8
- 2.Se6#
- 2.Sxa8#
- 1...Qe8
- 2.Se6#
- 2.Sxe8#
- 1...Qb6
- 2.Se6#
- 1...Sc4
- 2.Sd3#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Se6
- 2.Sxe6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...a3
- 2.Sb3#
- 1...Qxa6!
- 1...Qxc7
- 1.Kg3?
- Keys
- 1.Kf4!
- 1...Sd3+
- 2.Sxd3#
- 1...Se6+
- 2.Sxe6#
- 1...Kxd4
- 2.Qg1#
- 1...Qxa6
- 2.Qxd5#
- 1...Qxc7
- 2.Qxd5#
- 1...Qb5
- 2.Sxb5#
- 2.Se6#
- 2.Qxd5#
- 1...Qb7
- 2.Se6#
- 1...Qd7
- 2.Se6#
- 2.Qxd5#
- 1...Qa8
- 2.Se6#
- 1...Qe8
- 2.Se6#
- 2.Qxd5#
- 1...Qb6
- 2.Se6#
- 2.Qxd5#
- 1...Sd1
- 2.Sd3#
- 1...Sc4
- 2.Sd3#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...a3
- 2.Sb3#
- 1...Sd3+
- 1.Kf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(e);::R(K)+S(J),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::S(J),XS(h)
- S(h);N_GUARD::S(J)
- P(b);N_GUARD::S(B)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- Q(e);N_GUARD,XB(I)::QAR1(C),XP(d)
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR1(C),XP(d)
- Q(e);::R(K)+S(J),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::S(J),XS(h)
- S(h);N_GUARD::S(J)
- P(b);N_GUARD::S(B)
- Refutation
- K(c);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- K(E);S_FLIGHT
- Vars
- Q(e);CHECK::R(K)+S(J),DCHECK
- Q(e);N_GUARD,XB(I)::QAR1(C),XP(d)
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR1(C),XP(d)
- Q(e);::R(K)+S(J),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::S(J),XS(h)
- S(h);N_GUARD::S(J)
- P(b);N_GUARD::S(B)
- Refutation
- K(c);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- S(B);CHECK
- Refutation
- S(a);XS(B)
- Try
- B(A);XS(a)
- Threat
- S(B)
- Vars
- Q(e);OGATE,P_SPINQ(e),XS(J)::R(K),XQ(e)
- Q(e);::R(K)+S(J),DCHECK
- Refutation
- Q(e);XB(I)
- Try
- R(F);CHECK
- Vars
- S(a);XR(F)::S(B)
- Refutation
- P(d);CHECK,XR(F)
- Try
- Q(C);
- Threat
- QAB(C)+R(F),DCHECK
- Refutation
- Q(e);XB(I)
- Try
- Q(C);
- Vars
- Q(e);OGATE,P_SPINQ(e),XS(J)::R(K),XQ(e)
- Q(e);::R(K)+S(J),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::S(J),XS(h)
- S(h);N_GUARD::S(J)
- P(b);N_GUARD::S(B)
- Refutation
- Q(e);XB(I)
- Try
- Q(C);
- Vars
- Q(e);OGATE,P_SPINQ(e),XS(J)::R(K),XQ(e)
- Q(e);::R(K)+S(J),DCHECK
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::S(J),XS(h)
- S(h);N_GUARD::S(J)
- P(b);N_GUARD::S(B)
- Refutation
- Q(e);XB(I)
- Try
- Actual
- K(E);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::S(B),XS(a)
- S(h);CHECK,N_GUARD::S(J),XS(h)
- K(c);OGATEB,P_SPINS(a),S_FLIGHT,XR(F)::QAB(C)
- Q(e);N_GUARD,XB(I)::QAR1(C),XP(d)
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR1(C),XP(d)
- Q(e);::R(K)+S(J),DCHECK
- S(a);N_GUARD::S(B)
- S(h);N_GUARD::S(J)
- P(b);N_GUARD::S(B)
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).