MESON Chess Problem Database
Problem Display
PID: 86887 (3Q4/8/8/1p6/2n5/8/R1B1p3/K1k5 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Kirichenko, Anatoly Yakovlevich
Uralski Problemist, 1999
#2
4 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Qg5#
- 1...Sa5
- 2.Qg5#
- 1...Se5
- 2.Qg5#
- 1...Sb6
- 2.Qg5#
- 1...Sd6
- 2.Qg5#
- 1...e1S
- 2.Qd1#
- 1...e1B
- 2.Qd1#
- 1...Sa3
- Tries
- 1.Ba4?
- threat
- 2.Rc2#
- 1...e1S
- 2.Qd1#
- 1...Sb2
- 2.Qg5#
- 1...Sd2
- 2.Qxd2#
- 1...Sa3
- 2.Qg5#
- 2.Qd2#
- 1...Se3
- 2.Qd2#
- 1...Sd6
- 2.Qg5#
- 1...bxa4!
- threat
- 1.Qg5+?
- 1...Se3
- 2.Qxe3#
- 1...Sd2!
- 1...Se3
- 1.Ba4?
- Keys
- 1.Bb3!
- threat
- 2.Rc2#
- 1...e1S
- 2.Qd1#
- 1...Sb2
- 2.Qg5#
- 1...Sd2
- 2.Qxd2#
- 1...Sa3
- 2.Qg5#
- 2.Qd2#
- 1...Se3
- 2.Qd2#
- 1...Sd6
- 2.Qg5#
- threat
- 1.Bb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- S(c);N_GUARD::QAB(D)
- P(b);N_GUARD::QAR1(D)
- Tries
- Try
- B(C);
- Threat
- R1(B)
- Vars
- P(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- Refutation
- P(d);XB(C)
- Try
- Q(D);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAB(D),XS(c)
- Refutation
- S(c);P_SPINS(c)
- Try
- Actual
- B(C);
- Threat
- R1(B)
- Vars
- P(b);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAB(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(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).