MESON Chess Problem Database
Problem Display
PID: 250967 (7K/ppp5/k1B2BQp/7r/1P6/N7/7r/R7 w - - 0 1)
Prins, Hendrik
Probleemblad, 1981
#2
7 + 7
SOLUTION
- SOUND
- Tries
- 1.Sc4+?
- 1...Ra5
- 2.Rxa5#
- 2.b5#
- 1...Ra2!
- 1...Ra5
- 1.Bb5+?
- 1...Kb6
- 2.Bd4#
- 2.Bd8#
- 1...Rxb5!
- 1...Kb6
- 1.Bd4?
- threat
- 2.Bb5#
- 1...bxc6
- 2.Qxc6#
- 1...Rb5
- 2.Bxb5#
- 1...b5
- 2.Sc2#
- 1...b6!
- threat
- 1.Be5?
- threat
- 2.Bb5#
- 1...Kb6
- 2.Sc4#
- 1...bxc6
- 2.Qxc6#
- 1...b6
- 2.Sc2#
- 1...b5!
- threat
- 1.Sc4+?
- Keys
- 1.Bb2!
- threat
- 2.Bb5#
- 1...Kb6
- 2.Sc4#
- 1...bxc6
- 2.Qxc6#
- 1...Rb5
- 2.Bxb5#
- 1...b5
- 2.Sc4#
- 1...b6
- 2.Sb5#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(B);CHECK
- Refutation
- R(a);P_SPINR(a)
- Try
- B(D);CHECK
- Refutation
- R(b);XB(D)
- Try
- B(E);
- Threat
- QAR(F)+B(D),DCHECK
- Vars
- P(f);OGATE,P_SPINP(f),XB(D)::QAR2(F),XP(f)
- R(b);::QAR(F)+B(D),DCHECK,XR(b)
- P(f);S_CUTR(b)::R(A)+S(B)
- Refutation
- P(f);
- Try
- B(E);
- Threat
- QAR(F)+B(D),DCHECK
- Vars
- K(c);P-FLIGHT,S_CUTR(a)::S(B)
- P(f);OGATE,P_SPINP(f),XB(D)::QAR2(F),XP(f)
- P(f);SBLOCK::R(A)+S(B)
- Refutation
- P(f);
- Try
- Actual
- B(E);
- Threat
- QAR(F)+B(D),DCHECK
- Vars
- K(c);P-FLIGHT,S_CUTR(b)::S(B)
- P(f);OGATE,P_SPINP(f),XB(D)::QAR2(F),XP(f)
- R(b);::QAR(F)+B(D),DCHECK,XR(b)
- P(f);S_CUTR(b)::R(A)+S(B)
- P(f);SBLOCK::R(A)+S(B)
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).