MESON Chess Problem Database
Problem Display
PID: 21156 (2Rb4/1NqnPp2/2nQp3/7R/2k5/PpB1rB2/2P4K/1N6 w - - 0 1)
Westbury, Eric Ernest
1st Prize=, Good Companions (May), 1917
#2
11 + 9
| 3132 | The Good Companion Two-Mover | 1922 |
| 3391 | Het Half Pin Thema | 1924 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 5308 | La genialita compositiva di Giorgio Guidelli | 2004 |
| 56 | The Problemist | 2005 |
| 56 | The Problemist | 2010 |
| 56 | The Problemist | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Qd4#
- 1...Qxd6+
- 2.Sxd6#
- 1...Qxb7
- 2.Qd4#
- 1...Re2+
- 2.Bxe2#
- 1...Rxc3
- 2.Sd2#
- 1...Rd3
- 2.cxd3#
- 1...Re5
- 2.Qd3#
- 1...Sb4
- 2.Sa5#
- 1...Sd4
- 2.Sa5#
- 1...Sa5
- 2.Sxa5#
- 1...Sce5
- 2.Qb4#
- 2.Qa6#
- 1...Sa7
- 2.Sa5#
- 1...Sxe7
- 2.Sa5#
- 1...Scb8
- 2.Sa5#
- 1...Sc5
- 2.Rxc5#
- 1...Sde5
- 2.Qc5#
- 1...Sb6
- 2.Rc5#
- 1...Sf6
- 2.Rc5#
- 1...Sdb8
- 2.Rc5#
- 1...Sf8
- 2.Rc5#
- 1...e5
- 2.Qd5#
- 1...Qa5
- Tries
- 1.Sa5+?
- 1...Qxa5
- 2.Qd4#
- 1...Sxa5!
- 1...Qxa5
- 1.Bb2?
- threat
- 2.Sd2#
- 1...Qxd6+
- 2.Sxd6#
- 1...Re2+
- 2.Bxe2#
- 1...Re5
- 2.Qd3#
- 1...Sce5
- 2.Qb4#
- 2.Qa6#
- 1...Sc5
- 2.Rxc5#
- 1...Sde5
- 2.Qc5#
- 1...e5
- 2.Qd5#
- 1...Qa5
- 2.Qd4#
- 1...Rd3
- 2.cxd3#
- 1...f5!
- threat
- 1.Be2+?
- 1...Rd3
- 2.Bxd3#
- 2.cxd3#
- 1...Rxe2+!
- 1...Rd3
- 1.Rxc7?
- threat
- 2.Sa5#
- 2.Qb4#
- 2.Qd4#
- 1...Re2+
- 2.Bxe2#
- 1...Rxc3
- 2.Sd2#
- 2.Sa5#
- 2.Qb4#
- 2.Qf4#
- 1...Bxe7
- 2.Sa5#
- 2.Qd4#
- 1...bxc2
- 2.Sa5#
- 1...Re5
- 2.Qb4#
- 2.Qd3#
- 1...Sc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Se5
- 2.Qb4#
- 2.Qc5#
- 1...e5
- 2.Qb4#
- 2.Qd5#
- 1...f5
- 2.Qb4#
- 1...Rd3
- 2.Sa5#
- 2.Qb4#
- 2.Qxd3#
- 2.cxd3#
- 1...Re4
- 2.Sa5#
- 2.Qb4#
- 2.Qd3#
- 1...Bxc7!
- threat
- 1.Qf4+?
- 1...Re4
- 2.Be2#
- 1...Sd4
- 2.Sa5#
- 2.Sd6#
- 1...Qxf4+!
- 1...Re4
- 1.Sa5+?
- Keys
- 1.Bf6!
- threat
- 2.Sd2#
- 1...Qxd6+
- 2.Sxd6#
- 1...Re2+
- 2.Bxe2#
- 1...Sxf6
- 2.Rc5#
- 1...Re5
- 2.Qd3#
- 1...Sce5
- 2.Qb4#
- 1...Sc5
- 2.Rxc5#
- 1...Sde5
- 2.Qc5#
- 1...e5
- 2.Qd5#
- 1...Qa5
- 2.Qd4#
- 1...Rd3
- 2.cxd3#
- 1...Sd4
- 2.Sa5#
- threat
- 1.Bf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(f);N_PINQ(H),P_SPINS(d)::QAR1(H)
- Q(f);CHECK,P_SPINS(d),XQ(H)::S(I),XQ(f)
- Q(f);N_PINQ(H),P_SPINS(d),XS(I)::QAR1(H)
- R(b);CHECK,N_GUARD::B(F),XR(b)
- R(b);SBLOCK,XB(E)::S(A)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINQ(H)::QAB1(H)
- S(d);N_GUARD,P_SPINQ(f)::S(I)
- S(d);N_GUARD,P_SPINQ(f)::S(I),XS(d)
- S(d);N_GUARD,P_SPINQ(f),XP(J)::S(I)
- S(g);N_GUARD::R1(G),XS(g)
- S(g);N_PINQ(H)::QAR1(H)
- S(g);N_GUARD::R1(G)
- P(e);N_PINQ(H)::QAB1(H)
- Tries
- Try
- S(I);CHECK
- Vars
- Q(f);N_PINQ(H),P_SPINS(d),XS(I)::QAR1(H)
- Refutation
- S(d);P_SPINQ(f),XS(I)
- Try
- B(E);
- Threat
- S(A)
- Vars
- Q(f);CHECK,P_SPINS(d),XQ(H)::S(I),XQ(f)
- R(b);CHECK,N_GUARD::B(F),XR(b)
- R(b);N_PINQ(H)::QAB1(H)
- S(g);N_GUARD::R1(G),XS(g)
- S(g);N_PINQ(H)::QAR1(H)
- P(e);N_PINQ(H)::QAB1(H)
- Q(f);N_PINQ(H),P_SPINS(d)::QAR1(H)
- R(b);OGATE::P(B),XR(b)
- Refutation
- P(h);
- Try
- B(F);CHECK
- Refutation
- R(b);CHECK,XB(F)
- Try
- R(K);N_SPINQ(H),P_PINS(d),XQ(f)
- Threat
- DUALS(3)
- Vars
- R(b);CHECK,N_GUARD::B(F),XR(b)
- P(a);XP(B)::S(I)
- P(h);::QAR1(H)
- Refutation
- B(i);N_SPINS(d),P_PINQ(H),XR(K)
- Try
- Q(H);CHECK
- Vars
- R(b);P_SPINR(b)::B(F)
- Refutation
- Q(f);CHECK,P_SPINS(d),XQ(H)
- Try
- Actual
- B(E);
- Threat
- S(A)
- Vars
- Q(f);CHECK,P_SPINS(d),XQ(H)::S(I),XQ(f)
- R(b);CHECK,N_GUARD::B(F),XR(b)
- S(g);N_GUARD,XB(E)::R1(G)
- R(b);N_PINQ(H)::QAB1(H)
- S(d);N_PINQ(H),P_SPINQ(f)::QAR1(H)
- S(g);N_GUARD::R1(G),XS(g)
- S(g);N_PINQ(H)::QAR1(H)
- P(e);N_PINQ(H)::QAB1(H)
- Q(f);N_PINQ(H),P_SPINS(d)::QAR1(H)
- R(b);OGATE::P(B),XR(b)
- S(d);N_GUARD,P_SPINQ(f)::S(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).