MESON Chess Problem Database
Problem Display
PID: 145660 (8/2N2K1p/Qp1P1n1R/1Pk1b3/2pR1p2/3B1P2/1P2P3/8 w - - 0 1)
Bridgwater, Ralph Herbert
Birmingham Post, 1922
#2
11 + 7
| 15372 | Bridgwater Scrapbook | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Kb4
- 2.Qa3#
- 1...Kxd4
- 2.Qxb6#
- 1...Bxd4
- 2.Qa3#
- 1...Bxd6
- 2.Rxc4#
- 1...Se4
- 2.Rxc4#
- 1...Sg4
- 2.Rxc4#
- 1...Sd5
- 2.Rxc4#
- 1...Sh5
- 2.Rxc4#
- 1...Sd7
- 2.Rxc4#
- 1...Se8
- 2.Rxc4#
- 1...Sg8
- 2.Rxc4#
- 1...cxd3
- 2.Se6#
- 1...c3
- 2.Se6#
- 1...Kb4
- Tries
- 1.Ke6?
- threat
- 2.Rxc4#
- 1...Kb4
- 2.Qa3#
- 1...Kxd4
- 2.Qxb6#
- 1...Bxd4
- 2.Qa3#
- 1...c3
- 2.Rc4#
- 1...cxd3!
- threat
- 1.Rd5+?
- 1...Kb4
- 2.Qa3#
- 1...Sxd5!
- 1...Kb4
- 1.Rxf6?
- threat
- 2.Rxc4#
- 1...Kb4
- 2.Qa3#
- 1...Kxd4
- 2.Qxb6#
- 1...Bxd4
- 2.Qa3#
- 1...cxd3
- 2.Se6#
- 1...c3
- 2.Se6#
- 2.Rc4#
- 1...Bxf6!
- threat
- 1.Qa2?
- threat
- 2.Qxc4#
- 1...Kb4
- 2.Rxc4#
- 2.Qa3#
- 1...Bxd4
- 2.Qa3#
- 1...cxd3
- 2.Qc4#
- 1...c3
- 2.Se6#
- 2.Qc4#
- 1...Kxd4!
- threat
- 1.Qa4?
- threat
- 2.Se6#
- 2.Qxc4#
- 1...Bxd4
- 2.Qa3#
- 1...cxd3
- 2.Sa6#
- 2.Se6#
- 2.Qb4#
- 2.Qc4#
- 1...Sd5
- 2.Rxc4#
- 2.Rxd5#
- 2.Qxc4#
- 1...c3
- 2.Sa6#
- 2.Se6#
- 2.Qb4#
- 2.Qc4#
- 1...Kxd4!
- threat
- 1.Qa5?
- threat
- 2.Se6#
- 1...Kxd4
- 2.Qxb6#
- 1...Bxd4
- 2.Qa3#
- 1...Sd5
- 2.Rxc4#
- 2.Rxd5#
- 1...bxa5!
- threat
- 1.Qa7?
- 1...Kb4
- 2.Qa3#
- 1...Kxd4
- 2.Qxb6#
- 1...Bxd4
- 2.Qa3#
- 1...Bxd6
- 2.Rxc4#
- 1...Se4
- 2.Rxc4#
- 1...Sg4
- 2.Rxc4#
- 1...Sd5
- 2.Rxc4#
- 1...Sh5
- 2.Rxc4#
- 1...Sd7
- 2.Rxc4#
- 1...Se8
- 2.Rxc4#
- 1...Sg8
- 2.Rxc4#
- 1...c3
- 2.Se6#
- 1...cxd3!
- 1...Kb4
- 1.e3?
- threat
- 2.Qa3#
- 1...Kb4
- 2.Qa3#
- 1...Sd5
- 2.Rxc4#
- 1...fxe3!
- threat
- 1.d7?
- 1...Kb4
- 2.Qa3#
- 1...Kxd4
- 2.Qxb6#
- 1...Bxd4
- 2.Qa3#
- 1...Sxd7
- 2.Rxc4#
- 1...cxd3
- 2.Se6#
- 1...Se4
- 2.Rxc4#
- 1...Bd6
- 2.Rxc4#
- 1...Sg4
- 2.Rxc4#
- 1...Sd5
- 2.Rxc4#
- 1...Sh5
- 2.Rxc4#
- 1...Se8
- 2.Rxc4#
- 1...Sg8
- 2.Rxc4#
- 1...c3
- 2.Se6#
- 1...Bxc7!
- 1...Kb4
- 1.Ke6?
- Keys
- 1.Qa1!
- 1...Kb4
- 2.Qa3#
- 1...Kxd4
- 2.Qg1#
- 1...Bxd4
- 2.Qa3#
- 1...Bxd6
- 2.Rxc4#
- 1...cxd3
- 2.b4#
- 1...Se4
- 2.Rxc4#
- 1...Sg4
- 2.Rxc4#
- 1...Sd5
- 2.Rxc4#
- 1...Sh5
- 2.Rxc4#
- 1...Sd7
- 2.Rxc4#
- 1...Se8
- 2.Rxc4#
- 1...Sg8
- 2.Rxc4#
- 1...c3
- 2.Se6#
- 1...Kb4
- 1.Qa1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(c);P_SPINP(a),S_FLIGHT::QAB1(G)
- K(c);S_FLIGHT,XR(E)::QAB(G),XP(e)
- B(d);SBLOCK,XR(E)::QAB(G)
- B(d);SBLOCK,XP(H)::R1(E),XP(a)
- S(f);::R1(E),XP(a)
- P(a);XB(C)::S(J)
- P(a);::S(J)
- Tries
- Try
- K(K);S_FLIGHT
- Threat
- R1(E),XP(a)
- Vars
- K(c);P_SPINP(a),S_FLIGHT::QAB1(G)
- K(c);S_FLIGHT,XR(E)::QAB(G),XP(e)
- B(d);SBLOCK,XR(E)::QAB(G)
- P(a);::R1(E)
- Refutation
- P(a);XB(C)
- Try
- R(E);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(G)
- Refutation
- S(f);XR(E)
- Try
- R(I);XS(f)
- Threat
- R1(E),XP(a)
- Vars
- K(c);P_SPINP(a),S_FLIGHT::QAB1(G)
- K(c);S_FLIGHT,XR(E)::QAB(G),XP(e)
- B(d);SBLOCK,XR(E)::QAB(G)
- P(a);XB(C)::S(J)
- Refutation
- B(d);XR(I)
- Try
- Q(G);
- Threat
- QAR1(G),XP(a)
- Vars
- B(d);SBLOCK,XR(E)::QAB(G)
- P(a);XB(C)::QAR1(G)
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(d);SBLOCK,XR(E)::QAB(G)
- Refutation
- K(c);P_SPINP(a),S_FLIGHT,XR(E)
- Try
- Q(G);
- Threat
- S(J)
- Vars
- K(c);S_FLIGHT,XR(E)::QAB(G),XP(e)
- B(d);SBLOCK,XR(E)::QAB(G)
- Refutation
- P(e);XQ(G)
- Try
- Q(G);P_PINP(e)
- Vars
- K(c);N_SPINP(e),P_SPINP(a),S_FLIGHT::QAB1(G)
- K(c);S_FLIGHT,XR(E)::QAB(G),XP(e)
- B(d);SBLOCK,XR(E)::QAB(G)
- B(d);SBLOCK,XP(H)::R1(E),XP(a)
- S(f);::R1(E),XP(a)
- P(a);::S(J)
- Refutation
- P(a);XB(C)
- Try
- P(B);
- Threat
- QAB(G)
- Vars
- K(c);P_SPINP(a),S_FLIGHT::QAB1(G)
- S(f);::R1(E),XP(a)
- Refutation
- P(b);XP(B)
- Try
- P(H);
- Vars
- K(c);P_SPINP(a),S_FLIGHT::QAB1(G)
- K(c);S_FLIGHT,XR(E)::QAB(G),XP(e)
- B(d);SBLOCK,XR(E)::QAB(G)
- S(f);XP(H)::R1(E),XP(a)
- P(a);XB(C)::S(J)
- S(f);::R1(E),XP(a)
- B(d);SBLOCK::R1(E),XP(a)
- P(a);::S(J)
- Refutation
- B(d);XS(J)
- Try
- Actual
- Q(G);
- Vars
- K(c);P_SPINP(a),S_FLIGHT::QAB1(G)
- K(c);OGATEB,S_FLIGHT,XR(E)::QAB(G)
- B(d);SBLOCK,XR(E)::QAB(G)
- B(d);SBLOCK,XP(H)::R1(E),XP(a)
- P(a);N_GUARD,XB(C)::P(A)
- S(f);::R1(E),XP(a)
- P(a);::S(J)
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).