MESON Chess Problem Database
Problem Display
PID: 235247 (6bq/5pQ1/2P5/1K1NR1br/3kPP1n/3p1P2/3P4/8 w - - 0 1)
Heyl, Peter
Schach, 2008
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bf6
- 2.Qg1#
- 1...Bh6
- 2.Qg1#
- 1...Be7
- 2.Qg1#
- 1...Bd8
- 2.Qg1#
- 1...f5
- 2.Qa7#
- 1...f6
- 2.Qa7#
- 1...Bf6
- Tries
- 1.Se3?
- threat
- 2.Rd5#
- 1...Sxf3
- 2.Sf5#
- 1...f6
- 2.Qa7#
- 1...Bf6!
- threat
- 1.Sb4?
- threat
- 2.Rd5#
- 1...Bf6
- 2.Qg1#
- 1...f6
- 2.Qa7#
- 1...Sxf3!
- threat
- 1.Sf6?
- threat
- 2.Rd5#
- 1...Bxf6
- 2.Qg1#
- 1...Bh6
- 2.Qg1#
- 1...Bxf4!
- threat
- 1.Se7?
- threat
- 2.Rd5#
- 1...Sxf3
- 2.Sf5#
- 1...Bf6
- 2.Qg1#
- 1...f6!
- threat
- 1.Rf5+?
- 1...Bf6
- 2.Qg1#
- 1...f6
- 2.Qa7#
- 1...Qxg7!
- 1...Bf6
- 1.Rxg5+?
- 1...f6
- 2.Qa7#
- 1...Qxg7!
- 1...f6
- 1.Re6+?
- 1...Bf6
- 2.Qg1#
- 1...f6
- 2.Qa7#
- 1...Qxg7!
- 1...Bf6
- 1.Re8+?
- 1...Bf6
- 2.Qg1#
- 1...f6
- 2.Qa7#
- 1...Qxg7!
- 1...Bf6
- 1.Se3?
- Keys
- 1.Sc3!
- threat
- 2.Rd5#
- 1...Bf6
- 2.Qg1#
- 1...f6
- 2.Qa7#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(d);OGATE::QAB(I)
- P(f);OGATE::QAB(I)
- Tries
- Try
- S(F);
- Threat
- QAB(I)+R(G),DCHECK
- Vars
- S(c);N_GUARD,XP(B)::S(F)
- P(f);OGATE::QAB(I)
- Refutation
- B(d);P_PINR(G)
- Try
- S(F);
- Threat
- QAB(I)+R(G),DCHECK
- Vars
- B(d);OGATE,P_PINR(G)::QAB(I)
- P(f);OGATE::QAB(I)
- Refutation
- S(c);XP(B)
- Try
- S(F);
- Threat
- R1(G)
- Vars
- B(d);OGATE,P_PINR(G),XS(F)::QAB(I)
- B(d);OGATE,P_PINR(G)::QAB(I)
- Refutation
- B(d);P_PINR(G),XP(D)
- Try
- S(F);
- Threat
- QAB(I)+R(G),DCHECK
- Vars
- S(c);N_GUARD,XP(B)::S(F)
- B(d);OGATE,P_PINR(G)::QAB(I)
- Refutation
- P(f);
- Try
- R(G);CHECK
- Vars
- B(d);OGATE,P_SPINB(d)::QAB(I)
- P(f);OGATE,P_SPINP(f)::QAB(I)
- Refutation
- Q(h);XQ(I)
- Try
- R(G);CHECK,XB(d)
- Vars
- P(f);OGATE,P_SPINP(f)::QAB(I)
- Refutation
- Q(h);XQ(I)
- Try
- R(G);CHECK
- Vars
- B(d);OGATE,P_PINS(F),P_SPINB(d)::QAB(I)
- P(f);OGATE,P_SPINP(f)::QAB(I)
- Refutation
- Q(h);XQ(I)
- Try
- R(G);CHECK
- Vars
- B(d);OGATE,P_PINS(F),P_SPINB(d)::QAB(I)
- P(f);OGATE,P_SPINP(f)::QAB(I)
- Refutation
- Q(h);XQ(I)
- Try
- Actual
- S(F);
- Threat
- QAB(I)+R(G),DCHECK
- Vars
- B(d);OGATE,P_PINR(G)::QAB(I)
- P(f);OGATE::QAB(I)
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).