MESON Chess Problem Database
Problem Display
PID: 235341 (q2n1r2/8/Q1b2n1R/1pP1k1P1/5R2/4N3/B3N3/3K4 w - - 0 1)
Paslack, Rainer
Die Schwalbe, 1993
#2
9 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Qd6#
- 1...Bg2
- 2.Qd6#
- 1...Bf3
- 2.Qd6#
- 1...Be4
- 2.Qd6#
- 1...Bd5
- 2.Qd6#
- 1...Bb7
- 2.Qd6#
- 1...Bd7
- 2.Qd6#
- 1...Be8
- 2.Qd6#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sd5
- 2.Sg4#
- 1...Sh5
- 2.Sg4#
- 1...Sd7
- 2.Sg4#
- 1...Sh7
- 2.Sg4#
- 1...Se8
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...Bh1
- Tries
- 1.Rhh4?
- threat
- 2.Rf5#
- 1...Sd5
- 2.Re4#
- 1...Be4
- 2.Qd6#
- 1...Bd7
- 2.Qd6#
- 1...Se4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sh5
- 2.Sg4#
- 1...Sd7
- 2.Sg4#
- 1...Sh7
- 2.Sg4#
- 1...Se8
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...Qc8!
- threat
- 1.Rhxf6?
- threat
- 2.Sg4#
- 1...Bf3
- 2.Qd6#
- 1...Bd7
- 2.Qd6#
- 1...Qc8!
- threat
- 1.Rhh4?
- Keys
- 1.Bd5!
- threat
- 2.Rf5#
- 1...Bxd5
- 2.Qd6#
- 1...Sxd5
- 2.Sg4#
- 1...Qc8
- 2.Qa1#
- 1...Bd7
- 2.Qd6#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...Sh7
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Sg8
- 2.Re4#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- B(c);OGATE::QAB1(H)
- B(c);OGATE,P_PINS(C)::QAB1(H)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),XS(d)
- Tries
- Try
- R(I);
- Threat
- R1(E)
- Vars
- S(d);N_GUARD,S_CUTB(c)::R1(E)
- B(c);OGATE::QAB1(H)
- S(d);N_GUARD::S(D)
- S(d);N_GUARD::S(D),XS(d)
- Refutation
- Q(e);
- Try
- R(I);XS(d)
- Threat
- S(D)
- Vars
- B(c);OGATE,P_PINS(C)::QAB1(H)
- B(c);OGATE::QAB1(H)
- Refutation
- Q(e);
- Try
- Actual
- B(B);
- Threat
- R1(E)
- Vars
- B(c);OGATE,XB(B)::QAB1(H)
- S(d);N_GUARD,SBLOCK,XB(B)::S(D)
- Q(e);N_GUARD::QAB(H)
- B(c);OGATE::QAB1(H)
- S(d);N_GUARD::R1(E),XS(d)
- S(d);N_GUARD::R1(E)
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).