MESON Chess Problem Database
Problem Display
PID: 22235 (3q4/1Q2N3/3rr3/2n4R/2nkp3/2pPR3/5B2/7K w - - 0 1)
Dyachuk, Vasyl Vasilovich
Die Schwalbe, 2000
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Se5
- 2.Sf5#
- 1...Sxd3
- 2.Rxe4#
- 1...exd3
- 2.Sf5#
- 2.Re4#
- 1...Se5
- Tries
- 1.Qb4?
- threat
- 2.Qxc5#
- 2.Qxc4#
- 1...exd3
- 2.Ree5#
- 2.Rxe6#
- 2.Qxc5#
- 1...Qa5
- 2.Qxc4#
- 1...Qb6
- 2.Qxc4#
- 1...Qc7
- 2.Qxc4#
- 1...Qc8
- 2.Qxc4#
- 1...Rd5
- 2.Qxc4#
- 1...Rc6
- 2.Qxc4#
- 1...Re5
- 2.Qxc4#
- 1...Sb3
- 2.Qxc4#
- 1...Sa4
- 2.Qxc4#
- 1...Sa6
- 2.Qxc4#
- 1...Sb7
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 1...c2
- 2.Qxc4#
- 1...Sxd3!
- threat
- 1.Qb4?
- Keys
- 1.Qb5!
- threat
- 2.Qxc4#
- 2.Qxc5#
- 1...Sxe3
- 2.Qc4#
- 1...Sxd3
- 2.Sf5#
- 1...exd3
- 2.Qxc5#
- 1...c2
- 2.Qxc4#
- 1...Qa5
- 2.Qxc4#
- 1...Qb6
- 2.Qxc4#
- 1...Qc7
- 2.Qxc4#
- 1...Qc8
- 2.Qxc4#
- 1...Rd5
- 2.Qxc4#
- 1...Rc6
- 2.Qxc4#
- 1...Re5
- 2.Qxc4#
- 1...Sb2
- 2.Rxe4#
- 2.Qxc5#
- 1...Sd2
- 2.Rxe4#
- 2.Qxc5#
- 1...Sa3
- 2.Rxe4#
- 2.Qxc5#
- 1...Sa5
- 2.Rxe4#
- 2.Qxc5#
- 1...Se5
- 2.Rxe4#
- 1...Sb6
- 2.Rxe4#
- 2.Qxc5#
- 1...Sb3
- 2.Sf5#
- 2.Qxc4#
- 1...Sa4
- 2.Sf5#
- 2.Qxc4#
- 1...Sa6
- 2.Sf5#
- 2.Qxc4#
- 1...Sb7
- 2.Sf5#
- 2.Qxc4#
- 1...Sd7
- 2.Sf5#
- 2.Qxc4#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- S(b);SBLOCK::S(G)
- S(e);SBLOCK,XP(C)::B(B)+R(D),DCHECK,XP(d)
- Tries
- Try
- Q(F);P_PINS(b)
- Threat
- DUALS(2)
- Vars
- Q(h);::QAR1(F),XS(b)
- R(f);::QAR1(F),XS(b)
- R(g);::QAR1(F),XS(b)
- S(e);::QAR1(F),XS(b)
- P(a);::QAR1(F),XS(b)
- Refutation
- S(e);XP(C)
- Try
- Actual
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(b);P_SPINS(b),XR(D)::QAR1(F)
- S(e);XP(C)::S(G)
- P(d);XP(C)::QAB1(F),XS(e)
- P(a);::QAR1(F),XS(b)
- Q(h);::QAR1(F),XS(b)
- R(f);::QAR1(F),XS(b)
- R(g);::QAR1(F),XS(b)
- S(b);::B(B)+R(D),DCHECK,XP(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).