MESON Chess Problem Database
Problem Display
PID: 106913 (1KR5/B2R1n1r/rpbpN1N1/b2kPB2/1Pp5/QP3n2/4p3/5q2 w - - 0 1)
Colonelli, Hercules
Match: Brazil - Israel, 1971
#2
11 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.bxc4#
- 1...Bb7
- 2.bxc4#
- 1...Bxd7
- 2.bxc4#
- 1...Ba8
- 2.bxc4#
- 1...Sd4
- 2.Sc7#
- 1...S3xe5
- 2.Se7#
- 1...S7xe5
- 2.Sgf4#
- 1...Sg5
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Sd8
- 2.Rxd6#
- 1...Sh8
- 2.Rxd6#
- 1...cxb3
- 2.Qxb3#
- 1...b5
- 2.Sef4#
- 1...Ba4
- Tries
- 1.Be4+?
- 1...Kxe6
- 2.Re7#
- 1...Kxe4!
- 1...Kxe6
- 1.Qb2?
- threat
- 2.Sef4#
- 2.Sc7#
- 2.Sgf4#
- 2.Se7#
- 1...Rxa7
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 1...Bxb4
- 2.Sgf4#
- 2.Se7#
- 1...Bxd7
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 2.bxc4#
- 1...S3xe5
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 1...S7xe5
- 2.Sef4#
- 2.Sc7#
- 2.Sgf4#
- 1...cxb3
- 2.Qxb3#
- 1...Qc1
- 2.Sc7#
- 2.Se7#
- 1...Rh4
- 2.Sc7#
- 2.Se7#
- 1...Ba4
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 2.bxc4#
- 1...Bb5
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 1...Bb7
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 2.bxc4#
- 1...Ba8
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 2.bxc4#
- 1...Se1
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 1...Sg1
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 2.Qd2#
- 1...Sd2
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 2.Qxd2#
- 1...Sh2
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 2.Qd2#
- 1...Sd4
- 2.Sc7#
- 2.Qxd4#
- 1...Sh4
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 2.Qd2#
- 1...S3g5
- 2.Sc7#
- 2.Se7#
- 2.Qd4#
- 2.Qd2#
- 1...S7g5
- 2.Sef4#
- 2.Sc7#
- 2.Sgf4#
- 2.Rxd6#
- 1...Sh6
- 2.Sef4#
- 2.Sc7#
- 2.Sgf4#
- 2.Rxd6#
- 1...Sd8
- 2.Sef4#
- 2.Sc7#
- 2.Sgf4#
- 2.Rxd6#
- 1...Sh8
- 2.Sef4#
- 2.Sc7#
- 2.Sgf4#
- 2.Rxd6#
- 1...b5
- 2.Sef4#
- 2.Sgf4#
- 2.Se7#
- 1...c3!
- threat
- 1.Qxa5+?
- 1...Bb5
- 2.Qxb5#
- 2.bxc4#
- 1...bxa5
- 2.Sef4#
- 2.Sc7#
- 1...b5
- 2.Sef4#
- 2.Sc7#
- 1...Rxa5!
- 1...Bb5
- 1.Be4+?
- Keys
- 1.Qa4!
- threat
- 2.Qxc6#
- 1...Bxa4
- 2.bxc4#
- 1...Bxd7
- 2.bxc4#
- 1...S3xe5
- 2.Se7#
- 1...S7xe5
- 2.Sgf4#
- 1...Bb5
- 2.Qxb5#
- 1...Bb7
- 2.Qb5#
- 2.bxc4#
- 1...Ba8
- 2.Qb5#
- 2.bxc4#
- 1...Sd4
- 2.Sc7#
- 1...Sd8
- 2.Rxd6#
- 1...b5
- 2.Sef4#
- threat
- 1.Qa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- B(i);::P(B),XP(d)
- B(i);N_SPINP(j),XR(I)::P(B),XP(d)
- S(c);SBLOCK::S(F)
- S(c);SBLOCK,XP(D)::S(G)
- S(k);SBLOCK,XP(D)::S(G)
- S(k);N_GUARD::R1(I),XP(j)
- P(d);OGATE,XP(B)::QAB(A),XP(d)
- P(h);::S(F)
- Tries
- Try
- B(E);CHECK
- Vars
- K(f);N_SPINP(j),S_FLIGHT,XS(F)::R1(I)
- Refutation
- K(f);N_SPINP(j),S_FLIGHT,XB(E)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- P(d);OGATE,XP(B)::QAB(A),XP(d)
- Refutation
- P(d);
- Try
- Q(A);CHECK,XB(e)
- Refutation
- R(g);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A),XB(i)
- Vars
- B(i);XQ(A)::P(B),XP(d)
- B(i);N_SPINP(j),XR(I)::P(B),XP(d)
- S(c);SBLOCK,XP(D)::S(G)
- S(k);SBLOCK,XP(D)::S(G)
- B(i);N_GUARD::QAR2(A),XB(i)
- S(c);SBLOCK::S(F)
- S(k);N_GUARD::R1(I),XP(j)
- P(h);::S(F)
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).