MESON Chess Problem Database
Problem Display
PID: 114812 (2Bn4/b4pr1/RN3k1P/2Q1N3/7n/6R1/2p1r3/KbB5 w - - 0 1)
Andrade, Barry Jack da Costa
Staffordshire Advertiser, 1958
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe5
- 2.Sd5#
- 1...Rg5
- 2.Bxg5#
- 1...Rh7
- 2.Bg5#
- 1...Sf3
- 2.Rxf3#
- 1...Sf5
- 2.Sbd7#
- 1...Sg6
- 2.Sg4#
- 2.Bg5#
- 1...Sc6
- 2.Qd6#
- 1...Se6
- 2.Sed7#
- 1...Rxe5
- Tries
- 1.Sd3?
- threat
- 2.Sd5#
- 2.Sd7#
- 1...Re5
- 2.Sd5#
- 2.Qxe5#
- 1...Re6
- 2.Sd7#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sd7#
- 1...Bxb6!
- threat
- 1.Sf3?
- threat
- 2.Sd5#
- 2.Sd7#
- 1...Sxf3
- 2.Sd7#
- 1...Re5
- 2.Sd5#
- 2.Qxe5#
- 1...Re6
- 2.Sd7#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sd7#
- 1...Bxb6!
- threat
- 1.Sec4?
- threat
- 2.Sd5#
- 2.Sd7#
- 1...Re5
- 2.Sd5#
- 2.Qxe5#
- 1...Re6
- 2.Sd7#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sd7#
- 1...Bxb6!
- threat
- 1.Sg4+?
- 1...Rxg4
- 2.Sd7#
- 1...Kg6!
- 1...Rxg4
- 1.Sg6?
- threat
- 2.Sd5#
- 2.Sd7#
- 2.Qg5#
- 1...Rxg6
- 2.Sd7#
- 1...Bxb6
- 2.Qg5#
- 1...Sxg6
- 2.Sd7#
- 2.Bg5#
- 2.Qg5#
- 1...Re5
- 2.Sd5#
- 2.Qxe5#
- 1...Re6
- 2.Sd7#
- 2.Qg5#
- 1...Sf3
- 2.Sd5#
- 2.Sd7#
- 2.Qf5#
- 1...Sf5
- 2.Sd5#
- 2.Sd7#
- 2.Qxf5#
- 1...Sc6
- 2.Sd5#
- 2.Qg5#
- 1...Se6
- 2.Sd7#
- 1...fxg6!
- threat
- 1.Sa4+?
- 1...Sc6
- 2.Rxc6#
- 2.Qd6#
- 1...Se6
- 2.Sd7#
- 1...Bb6!
- 1...Sc6
- 1.Sbc4+?
- 1...Sc6
- 2.Rxc6#
- 2.Qd6#
- 1...Se6
- 2.Sd7#
- 1...Bb6!
- 1...Sc6
- 1.Sa8+?
- 1...Sc6
- 2.Rxc6#
- 2.Qd6#
- 1...Se6
- 2.Sd7#
- 1...Bb6!
- 1...Sc6
- 1.Bf4?
- threat
- 2.Sd5#
- 1...Se6
- 2.Sed7#
- 1...Bxb6!
- threat
- 1.Bh3?
- threat
- 2.Sed7#
- 2.Sbd7#
- 1...Rxe5
- 2.Sd5#
- 2.Sd7#
- 1...Rxg3
- 2.Sbd7#
- 1...Bxb6
- 2.Sd7#
- 1...Sf5
- 2.Sbd7#
- 1...Rd2
- 2.Sbd7#
- 1...Rg5
- 2.Sbd7#
- 2.Bxg5#
- 1...Rg4!
- threat
- 1.Rf3+?
- 1...Sf5
- 2.Sbd7#
- 2.Rxf5#
- 1...Sxf3!
- 1...Sf5
- 1.Rg5?
- threat
- 2.Sg4#
- 2.Sd5#
- 2.Sbd7#
- 1...Rxe5
- 2.Sd5#
- 2.Sd7#
- 2.Qxe5#
- 1...Bxb6
- 2.Sg4#
- 1...Rd2
- 2.Sg4#
- 1...Re3
- 2.Sg4#
- 1...Rg2
- 2.Sd5#
- 2.Sbd7#
- 1...Re4
- 2.Sd5#
- 2.Sbd7#
- 1...Sf5
- 2.Sg4#
- 2.Sbd7#
- 2.Rxf5#
- 1...Sc6
- 2.Sg4#
- 2.Sd5#
- 2.Qd6#
- 1...Rxg5!
- threat
- 1.Rxg7?
- threat
- 2.Sg4#
- 2.Bg5#
- 1...Rxe5
- 2.Sd5#
- 1...Se6
- 2.Sg4#
- 2.Sed7#
- 2.Rxf7#
- 1...Rd2
- 2.Sg4#
- 1...Re3
- 2.Sg4#
- 1...Re4
- 2.Bg5#
- 1...Sf3
- 2.Sg4#
- 1...Sg6
- 2.Sg4#
- 1...Rg2!
- threat
- 1.hxg7?
- threat
- 2.g8S#
- 1...Se6
- 2.Sed7#
- 1...Sg6!
- threat
- 1.Sd3?
- Keys
- 1.Ba3!
- threat
- 2.Qe7#
- 1...Rxe5
- 2.Sd5#
- 1...Se6
- 2.Sed7#
- 1...Sf5
- 2.Sbd7#
- 1...Sg6
- 2.Sg4#
- 1...Sc6
- 2.Qd6#
- threat
- 1.Ba3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(c);SBLOCK,XS(E)::R(F)+S(G),DCHECK
- R(h);N_GUARD::B(B),XR(h)
- R(h);N_GUARD::B(B)
- S(d);N_GUARD::R(C),XS(d)
- S(d);SBLOCK::R(F)+S(G),DCHECK
- S(i);N_GUARD::QAR2(D)
- S(i);SBLOCK::S(E)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(c);::S(G)
- S(i);::S(G)
- Refutation
- B(f);P_SPINB(f),XS(G)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(d);XS(E)::R(F)+S(G),DCHECK
- R(c);::S(G)
- S(i);::S(G)
- Refutation
- B(f);P_SPINB(f),XS(G)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(c);::S(G)
- S(i);::S(G)
- Refutation
- B(f);P_SPINB(f),XS(G)
- Try
- S(E);CHECK
- Vars
- R(h);XS(E)::R(F)+S(G),DCHECK
- Refutation
- K(e);P-FLIGHT
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(h);XS(E)::R(F)+S(G),DCHECK
- B(f);P_SPINB(f),XS(G)::QAB1(D)
- S(i);::S(G)
- Refutation
- P(g);XS(E)
- Try
- S(G);CHECK
- Vars
- S(i);P_SPINS(i)::S(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- S(G);CHECK
- Vars
- S(i);P_SPINS(i)::S(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- S(G);CHECK
- Vars
- S(i);P_SPINS(i)::S(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- B(B);
- Threat
- R(F)+S(G),DCHECK
- Vars
- S(i);SBLOCK::S(E)
- Refutation
- B(f);P_SPINB(f),XS(G)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(h);XR(C)::R(F)+S(G),DCHECK
- B(f);P_SPINB(f),XS(G)::S(E)
- S(d);::R(F)+S(G),DCHECK
- R(c);::R(F)+S(G),DCHECK
- Refutation
- R(h);
- Try
- R(C);CHECK
- Refutation
- S(d);XR(C)
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- B(f);P_SPINB(f),XS(G)::S(E)
- R(c);::S(E)
- Refutation
- R(h);XR(C)
- Try
- R(C);XR(h)
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK,XS(E)::R(F)+S(G),DCHECK
- R(c);::S(E)
- R(c);::B(B)
- S(d);::S(E)
- Refutation
- R(c);
- Try
- P(H);XR(h)
- Threat
- P=S
- Vars
- S(i);SBLOCK::S(E)
- Refutation
- S(d);
- Try
- Actual
- B(B);
- Threat
- QAB1(D)
- Vars
- R(c);SBLOCK,XS(E)::R(F)+S(G),DCHECK
- S(i);SBLOCK::S(E)
- S(d);SBLOCK::R(F)+S(G),DCHECK
- S(d);SBLOCK,S_CUTR(h)::S(E)
- S(i);N_GUARD::QAR2(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).