MESON Chess Problem Database
Problem Display
PID: 129730 (4Q3/4N2b/8/p5p1/1N2kP2/3p4/3P2K1/8 w - - 0 1)
Schlechter, Carl
Skakbladet, 1918
#2
6 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Tries
- 1.Qb5?
- threat
- 2.Qc4#
- 2.Qe5#
- 1...Kd4
- 2.Qd5#
- 1...gxf4
- 2.Qd5#
- 1...Bg8
- 2.Qe5#
- 1...Kxf4!
- threat
- 1.Qc6+?
- 1...Kd4
- 2.Qd5#
- 1...Kxf4!
- 1...Kd4
- 1.Qf7?
- threat
- 2.Qc4#
- 1...Kd4
- 2.Qd5#
- 1...gxf4
- 2.Qd5#
- 1...Bg8!
- threat
- 1.Qa8+?
- 1...Kd4
- 2.Qd5#
- 1...Kxf4!
- 1...Kd4
- 1.Qb5?
- Keys
- 1.Qa4!
- threat
- 2.Sa2#
- 2.Sc2#
- 2.Sbd5#
- 2.Sa6#
- 2.Sbc6#
- 1...Kd4
- 2.Sa6#
- 1...Kxf4
- 2.Sxd3#
- 1...axb4
- 2.Qxb4#
- 1...gxf4
- 2.Sbc6#
- 1...Bg8
- 2.Sbd5#
- threat
- 1.Qa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT::QAR1(F)
- P(d);SBLOCK,XP(D)::QAB1(F)
- B(e);::QAR1(F)
- Refutation
- K(b);P-FLIGHT,XP(D)
- Try
- Q(F);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(F)
- Refutation
- K(b);P-FLIGHT,XP(D)
- Try
- Q(F);
- Threat
- QAR2(F)
- Vars
- K(b);P-FLIGHT::QAR1(F)
- P(d);SBLOCK,XP(D)::QAB1(F)
- Refutation
- B(e);
- Try
- Q(F);CHECK
- Vars
- K(b);P-FLIGHT::QAR1(F)
- Refutation
- K(b);P-FLIGHT,XP(D)
- Try
- Actual
- Q(F);
- Threat
- DUALS(5)
- Vars
- K(b);P-FLIGHT::QAR(F)+S(C)
- K(b);P-FLIGHT,XP(D)::QAR(F)+S(C),DCHECK,XP(a)
- P(c);OGATE,P_SPINP(c),XS(C)::QAR(F),XP(c)
- P(d);SBLOCK,XP(D)::QAR(F)+S(C)
- B(e);::QAR(F)+S(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).