MESON Chess Problem Database
Problem Display
PID: 35615 (8/n1Bp4/2n5/2kP4/P4N2/2PQ1bN1/6p1/6K1 w - - 0 1)
Knoppel, Jan Heribert
Schackvarlden, 1943
#2
8 + 6
| 3680 | Jan Knoppel Udvalgte Skakproblemer | 1955 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Se4#
- 1...Be2
- 2.Se4#
- 1...Be4
- 2.Sxe4#
- 1...Bg4
- 2.Se4#
- 1...Bxd5
- 2.Qxd5#
- 1...Bh5
- 2.Se4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Se5
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sb5
- 2.Qxb5#
- 1...Sc8
- 2.Qb5#
- 1...d6
- 2.Se6#
- 1...Bd1
- Tries
- 1.Qe3+?
- 1...Sd4
- 2.Qxd4#
- 1...Kc4!
- 1...Sd4
- 1.Qe3+?
- Keys
- 1.Qa6!
- 1...Bxd5
- 2.Sd3#
- 1...Sb5
- 2.Qxb5#
- 1...d6
- 2.Bb6#
- 1...Bd1
- 2.Se4#
- 1...Be2
- 2.Se4#
- 1...Be4
- 2.Sxe4#
- 1...Bg4
- 2.Se4#
- 1...Bh5
- 2.Se4#
- 1...Sb4
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sa5
- 2.Bd6#
- 1...Se5
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sb8
- 2.Bd6#
- 1...Sd8
- 2.Bd6#
- 1...Sc8
- 2.Qb5#
- 1...Bxd5
- 1.Qa6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD::S(D)
- B(b);N_GUARD::S(D),XB(b)
- B(b);OGATE,XP(G)::QAR1(C),XB(b)
- S(d);N_GUARD::QAB1(C)
- S(d);N_GUARD::QAB1(C),XS(d)
- S(e);N_GUARD::QAR1(C),XS(e)
- S(e);N_GUARD::QAR1(C)
- P(f);N_GUARD::S(F)
- Tries
- Try
- Q(C);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAB1(C),XS(d)
- Refutation
- K(c);P-FLIGHT
- Try
- Actual
- Q(C);
- Vars
- B(b);SBLOCK,XP(G)::S(F)
- S(e);N_GUARD::QAR1(C),XS(e)
- P(f);SBLOCK::B(H)
- B(b);N_GUARD::S(D)
- B(b);N_GUARD::S(D),XB(b)
- S(d);::B(H)
- S(e);N_GUARD::QAR1(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).