MESON Chess Problem Database
Problem Display
PID: 61848 (Q7/1K1N3p/5P2/2Bn2p1/1P2k1B1/3pp1P1/8/7q w - - 0 1)
Dyachuk, Vasyl Vasilovich
2nd Prize, Sakkelet, 1999
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Kxb6#
- 1...Sc7
- 2.Kxc7#
- 1...Sb6
- Tries
- 1.Qa1?
- threat
- 2.Qd4#
- 2.Qe5#
- 2.Qxh1#
- 1...Sc3
- 2.Qxh1#
- 1...Sf4
- 2.Qd4#
- 2.Qe5#
- 1...d2
- 2.Qd4#
- 1...Qg2
- 2.Qd4#
- 2.Qe5#
- 1...Qf3
- 2.Qd4#
- 2.Qe5#
- 1...Qb1
- 2.Qd4#
- 2.Qe5#
- 1...Qc1
- 2.Qd4#
- 2.Qe5#
- 1...Qd1
- 2.Qd4#
- 2.Qe5#
- 1...Qe1
- 2.Qd4#
- 2.Qe5#
- 1...Qf1
- 2.Qd4#
- 2.Qe5#
- 1...Qg1
- 2.Qd4#
- 2.Qe5#
- 1...Qh2
- 2.Qd4#
- 2.Qe5#
- 1...Qh3
- 2.Qd4#
- 2.Qe5#
- 1...Qh4
- 2.Qd4#
- 2.Qe5#
- 1...Qh5
- 2.Qd4#
- 2.Qe5#
- 1...Qh6
- 2.Qd4#
- 2.Qe5#
- 1...Qxa1!
- threat
- 1.Qg8?
- threat
- 2.Qe6#
- 1...Qa1
- 2.Qxh7#
- 1...Sf4
- 2.Qc4#
- 1...Sc7
- 2.Qc4#
- 1...d2!
- threat
- 1.Qa1?
- Keys
- 1.Qa2!
- threat
- 2.Qc4#
- 1...Qa1
- 2.Qg2#
- 1...Qc1
- 2.Qg2#
- 1...Sb6
- 2.Qe6#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(e);::QAB(H)+K(F),XS(e)
- Tries
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(e);::QAB(H),XQ(a)
- P(b);::QAR1(H)
- Refutation
- Q(a);XQ(H)
- Try
- Q(H);
- Threat
- QAR2(H)
- Vars
- Q(a);N_GUARD::QAB(H),XP(g)
- S(e);OGATE::QAR2(H)
- Refutation
- P(b);
- Try
- Actual
- Q(H);
- Threat
- QAR2(H)
- Vars
- Q(a);N_GUARD::QAB(H)
- S(e);OGATE::QAR2(H)
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).