MESON Chess Problem Database
Problem Display
PID: 87847 (1B5k/2n4P/6K1/8/8/2n5/8/7Q w - - 0 1)
Schilnikov, Vladimir Evgenievich
Vestnik Problemista, 1991
#2
4 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb5
- 2.Be5#
- 1...Sa6
- 2.Be5#
- 1...Sa8
- 2.Be5#
- 1...Sb5
- Tries
- 1.Qf3?
- threat
- 2.Qxc3#
- 2.Qf6#
- 2.Qf8#
- 1...Sb1
- 2.Qf6#
- 2.Qf8#
- 1...Sd1
- 2.Qf6#
- 2.Qf8#
- 1...Sa2
- 2.Qf6#
- 2.Qf8#
- 1...Se2
- 2.Qf6#
- 2.Qf8#
- 1...Sa4
- 2.Qf6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...S3b5
- 2.Qf6#
- 2.Qf8#
- 1...S3d5
- 2.Qf8#
- 1...S7b5
- 2.Be5#
- 2.Qf6#
- 2.Qf8#
- 1...S7d5
- 2.Qf8#
- 1...Se8
- 2.Qf8#
- 1...Se6!
- threat
- 1.Qf1?
- threat
- 2.Qf6#
- 2.Qf8#
- 1...Se4
- 2.Qf8#
- 1...S3d5
- 2.Qf8#
- 1...S7d5
- 2.Qf8#
- 1...Se8
- 2.Qf8#
- 1...Se6!
- threat
- 1.Qh6?
- threat
- 2.Qg7#
- 2.Qf8#
- 1...Se8
- 2.Qf8#
- 1...Se6!
- threat
- 1.Qf3?
- Keys
- 1.Qa8!
- threat
- 2.Bxc7#
- 1...Sxa8
- 2.Be5#
- 1...S7b5
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Ba7#
- 2.Bc7#
- 1...S7d5
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Be5#
- 2.Bd6#
- 2.Ba7#
- 2.Bc7#
- 1...Sa6
- 2.Be5#
- 1...Se6
- 2.Be5#
- 1...Se8
- 2.Be5#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(b);OGATE::B(D)
- Tries
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(a);::QAR2(A)
- S(b);::QAR2(A)
- Refutation
- S(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(a);::QAR2(A)
- S(b);::QAR2(A)
- Refutation
- S(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(b);::QAR2(A)
- Refutation
- S(b);
- Try
- Actual
- Q(A);
- Threat
- QAR(A)+B(D),XS(b)
- Vars
- S(b);OGATE,SBLOCK,XQ(A)::B(D)
- S(b);OGATE::QAR(A)+B(D),DCHECK
- S(b);OGATE::B(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).