MESON Chess Problem Database
Problem Display
PID: 99233 (2N5/3B1p2/5Pp1/3kN3/1qpPp1K1/1P1pP3/b7/2Q5 w - - 0 1)
Koder, Gabor
Budapesti Sakkszovetseg, 1973
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Qxc4#
- 1...Qd2
- 2.Qxc4#
- 1...Qa3
- 2.Qxc4#
- 1...Qa5
- 2.Qxc4#
- 1...Qd6
- 2.Qxc4#
- 1...Qe7
- 2.Qxc4#
- 1...Qf8
- 2.Qxc4#
- 1...Qb6
- 2.Qxc4#
- 1...Qb7
- 2.Qxc4#
- 1...Qb8
- 2.Qxc4#
- 1...cxb3
- 2.Qc6#
- 1...Qe1
- Tries
- 1.Sc6?
- threat
- 2.Sxb4#
- 1...Qxb3
- 2.S6e7#
- 1...Qe1
- 2.S6e7#
- 2.Qxc4#
- 1...Qd2
- 2.S6e7#
- 2.Qxc4#
- 1...Qa3
- 2.Qxc4#
- 1...Qc3
- 2.S6e7#
- 1...Qa5
- 2.S6e7#
- 2.Qxc4#
- 1...Qd6
- 2.Sb6#
- 2.Qxc4#
- 1...Qe7
- 2.S6xe7#
- 2.Qxc4#
- 1...Qf8
- 2.Qxc4#
- 1...Qa4
- 2.S6e7#
- 1...Qb5
- 2.S6e7#
- 1...Qb6
- 2.S6e7#
- 2.Qxc4#
- 1...Qb7
- 2.S6e7#
- 2.Qxc4#
- 1...Qb8
- 2.S6e7#
- 2.Qxc4#
- 1...Qc5!
- threat
- 1.Sxg6?
- threat
- 2.Sf4#
- 1...Qd6
- 2.Qxc4#
- 1...Qb8
- 2.Sge7#
- 2.Qxc4#
- 1...fxg6!
- threat
- 1.Be8?
- threat
- 2.Bxf7#
- 1...Qd6
- 2.Qxc4#
- 1...Qe7
- 2.Qxc4#
- 1...Qf8
- 2.Qxc4#
- 1...Qb6
- 2.Qxc4#
- 1...Qb7
- 2.Qxc4#
- 1...Ke6!
- threat
- 1.Sc6?
- Keys
- 1.Sxd3!
- threat
- 2.Sxb4#
- 2.Sf4#
- 1...Qxb3
- 2.Sf4#
- 1...cxd3
- 2.Qc6#
- 1...exd3
- 2.Qh1#
- 1...Qe1
- 2.Sf4#
- 2.Qxc4#
- 1...Qd2
- 2.Sf4#
- 2.Qxc4#
- 1...Qa3
- 2.Sf4#
- 2.Qxc4#
- 1...Qc3
- 2.Sf4#
- 1...Qa5
- 2.Sf4#
- 2.Qxc4#
- 1...Qc5
- 2.Sf4#
- 1...Qd6
- 2.Qxc4#
- 1...Qe7
- 2.Sf4#
- 2.Qxc4#
- 1...Qf8
- 2.Sf4#
- 2.Qxc4#
- 1...Qa4
- 2.Sf4#
- 1...Qb5
- 2.Sf4#
- 1...Qb6
- 2.Sf4#
- 2.Qxc4#
- 1...Qb7
- 2.Sf4#
- 2.Qxc4#
- 1...Qb8
- 2.Qxc4#
- 1...g5
- 2.Sxb4#
- threat
- 1.Sxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 9
- Sets
- Q(c);N_GUARD::QAB1(A),XP(d)
- P(d);OGATE,XP(B)::QAB1(A)
- Tries
- Try
- S(F);
- Threat
- S(F),XQ(c)
- Vars
- Q(c);N_GUARD,XP(B)::S(F)
- Q(c);N_GUARD::QAB1(A),XP(d)
- Q(c);N_GUARD::S(F)
- Refutation
- Q(c);
- Try
- S(F);XP(g)
- Threat
- S(F)
- Vars
- Q(c);N_GUARD::QAB1(A),XP(d)
- Refutation
- P(h);XS(F)
- Try
- B(H);
- Threat
- B(H),XP(h)
- Vars
- Q(c);N_GUARD::QAB1(A),XP(d)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- S(F);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(c);XP(B)::S(F)
- P(d);OGATE,XS(F)::QAB1(A)
- P(e);OGATEB,XS(F)::QAB(A)
- Q(c);::S(F)
- Q(c);N_GUARD::QAB1(A),XP(d)
- P(g);::S(F),XQ(c)
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).