MESON Chess Problem Database
Problem Display
PID: 93374 (1RN4Q/4B3/n7/3p4/b1k2pN1/1p1p4/1P2n2K/3B4 w - - 0 1)
Dreijers, Albert
Silkans, Vladislavs
Shakhmaty v SSSR, 1959
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb5
- 2.Sb6#
- 1...Bc6
- 2.Bxb3#
- 1...Bd7
- 2.Bxb3#
- 1...Be8
- 2.Bxb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sd4
- 2.Se5#
- 1...Sb4
- 2.Rxb4#
- 1...Sc5
- 2.Sd6#
- 1...Sc7
- 2.Rb4#
- 1...d2
- 2.Bxe2#
- 1...f3
- 2.Se3#
- 1...d4
- 2.Qg8#
- 1...Bb5
- Tries
- 1.Bxe2?
- threat
- 2.Qc3#
- 1...d4
- 2.Qg8#
- 1...Sxb8!
- threat
- 1.Ba3?
- threat
- 2.Sd6#
- 1...d2
- 2.Bxe2#
- 1...d4
- 2.Qg8#
- 1...Sb4!
- threat
- 1.Bf8?
- 1...d2
- 2.Bxe2#
- 1...d4
- 2.Qg8#
- 1...Sd4
- 2.Se5#
- 1...Bb5
- 2.Sb6#
- 1...Bc6
- 2.Bxb3#
- 1...Bd7
- 2.Bxb3#
- 1...Be8
- 2.Bxb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sb4
- 2.Rxb4#
- 1...Sc5
- 2.Sd6#
- 1...Sc7
- 2.Rb4#
- 1...f3
- 2.Se3#
- 1...Sxb8!
- 1...d2
- 1.Rxb3?
- threat
- 2.Sb6#
- 1...Sb4
- 2.Rxb4#
- 1...Bxb3!
- threat
- 1.Rb5?
- threat
- 2.Sd6#
- 1...Bxb5
- 2.Sb6#
- 1...d2
- 2.Bxe2#
- 1...Kxb5!
- threat
- 1.Rb6?
- 1...d2
- 2.Bxe2#
- 1...d4
- 2.Qg8#
- 1...Sd4
- 2.Se5#
- 1...Bc6
- 2.Bxb3#
- 1...Bd7
- 2.Bxb3#
- 1...Be8
- 2.Bxb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sb4
- 2.Rxb4#
- 1...Sc5
- 2.Sd6#
- 1...Sc7
- 2.Rb4#
- 1...Sb8
- 2.Rb4#
- 1...f3
- 2.Se3#
- 1...Bb5!
- 1...d2
- 1.Qd4+?
- 1...Sxd4
- 2.Se5#
- 1...Kxd4!
- 1...Sxd4
- 1.Qf6?
- 1...d2
- 2.Bxe2#
- 1...d4
- 2.Qe6#
- 2.Qf7#
- 1...Sd4
- 2.Se5#
- 1...Bb5
- 2.Sb6#
- 1...Bc6
- 2.Bxb3#
- 1...Bd7
- 2.Bxb3#
- 1...Be8
- 2.Bxb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sb4
- 2.Rxb4#
- 1...Sc5
- 2.Sd6#
- 1...Sc7
- 2.Rb4#
- 1...f3
- 2.Se3#
- 1...Sxb8!
- 1...d2
- 1.Qg7?
- 1...d2
- 2.Bxe2#
- 1...d4
- 2.Qf7#
- 2.Qg8#
- 1...Sd4
- 2.Se5#
- 1...Bb5
- 2.Sb6#
- 1...Bc6
- 2.Bxb3#
- 1...Bd7
- 2.Bxb3#
- 1...Be8
- 2.Bxb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sb4
- 2.Rxb4#
- 1...Sc5
- 2.Sd6#
- 1...Sc7
- 2.Rb4#
- 1...f3
- 2.Se3#
- 1...Sxb8!
- 1...d2
- 1.Bxe2?
- Keys
- 1.Rb7!
- 1...d2
- 2.Bxe2#
- 1...d4
- 2.Qg8#
- 1...Sd4
- 2.Se5#
- 1...Bb5
- 2.Sb6#
- 1...Bc6
- 2.Bxb3#
- 1...Bd7
- 2.Bxb3#
- 1...Be8
- 2.Bxb3#
- 1...Sc1
- 2.Qc3#
- 1...Sg1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sb4
- 2.Rxb4#
- 1...Sc5
- 2.Sd6#
- 1...Sc7
- 2.Rb4#
- 1...Sb8
- 2.Rb4#
- 1...f3
- 2.Se3#
- 1...d2
- 1.Rb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(d);SBLOCK::S(G)
- B(d);N_GUARD::B(A),XP(b)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);SBLOCK::S(D)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);SBLOCK::S(G)
- S(h);N_GUARD::R1(F)
- P(c);OGATEB::B(A),XS(a)
- P(f);N_GUARD::S(D)
- P(g);OGATEB,SBLOCK::QAB(H)
- Tries
- Try
- B(A);P_PINP(c),XS(a)
- Threat
- QAR1(H)
- Vars
- P(g);OGATEB,SBLOCK::QAB(H)
- Refutation
- S(h);XR(F)
- Try
- B(E);
- Threat
- S(G)
- Vars
- P(c);OGATEB::B(A),XS(a)
- P(g);OGATEB,SBLOCK::QAB(H)
- Refutation
- S(h);
- Try
- B(E);
- Vars
- P(c);OGATEB::B(A),XS(a)
- P(g);OGATEB,SBLOCK::QAB(H)
- S(a);SBLOCK::S(D)
- B(d);SBLOCK::S(G)
- B(d);N_GUARD::B(A),XP(b)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);SBLOCK::S(G)
- S(h);N_GUARD::R1(F)
- P(f);N_GUARD::S(D)
- Refutation
- S(h);XR(F)
- Try
- R(F);XP(b)
- Threat
- S(G)
- Vars
- S(h);N_GUARD::R1(F),XS(h)
- Refutation
- B(d);XR(F)
- Try
- R(F);
- Threat
- S(G)
- Vars
- B(d);SBLOCK,XR(F)::S(G)
- P(c);OGATEB::B(A),XS(a)
- Refutation
- K(e);S_FLIGHT,XR(F)
- Try
- R(F);
- Vars
- P(c);OGATEB::B(A),XS(a)
- P(g);OGATEB,SBLOCK::QAB(H)
- S(a);SBLOCK::S(D)
- B(d);N_GUARD::B(A),XP(b)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);SBLOCK::S(G)
- S(h);N_GUARD::R1(F)
- P(f);N_GUARD::S(D)
- Refutation
- B(d);
- Try
- Q(H);CHECK
- Vars
- S(a);SBLOCK,XQ(H)::S(D)
- Refutation
- K(e);P-FLIGHT,XQ(H)
- Try
- Q(H);
- Vars
- P(c);OGATEB::B(A),XS(a)
- S(a);SBLOCK::S(D)
- B(d);SBLOCK::S(G)
- B(d);N_GUARD::B(A),XP(b)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);SBLOCK::S(G)
- S(h);N_GUARD::R1(F)
- P(f);N_GUARD::S(D)
- Refutation
- S(h);XR(F)
- Try
- Q(H);
- Vars
- P(c);OGATEB::B(A),XS(a)
- S(a);SBLOCK::S(D)
- B(d);SBLOCK::S(G)
- B(d);N_GUARD::B(A),XP(b)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);SBLOCK::S(G)
- S(h);N_GUARD::R1(F)
- P(f);N_GUARD::S(D)
- Refutation
- S(h);XR(F)
- Try
- Actual
- R(F);
- Vars
- P(c);OGATEB::B(A),XS(a)
- P(g);OGATEB,SBLOCK::QAB(H)
- S(a);SBLOCK::S(D)
- B(d);SBLOCK::S(G)
- B(d);N_GUARD::B(A),XP(b)
- S(a);N_GUARD::QAR1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(h);N_GUARD::R1(F),XS(h)
- S(h);SBLOCK::S(G)
- S(h);N_GUARD::R1(F)
- P(f);N_GUARD::S(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).