MESON Chess Problem Database
Problem Display
PID: 285383 (8/2ppp1p1/1p2PbN1/pQPk1Bp1/P5K1/2p1P3/2PP4/8 w - - 0 1)
Hoffmann, Martin Wolfgang
Zurcher Woche, 1969
#2
10 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2026 |
SOLUTION
- SOUND
- Sets
- 1...Bd4
- 2.e4#
- 1...Be5
- 2.Sxe7#
- 1...cxd2
- 2.c4#
- 1...d6
- 2.c6#
- 1...Bd4
- Tries
- 1.Sf4+?
- 1...Ke5
- 2.d4#
- 1...gxf4!
- 1...Ke5
- 1.Sxe7+?
- 1...Ke5
- 2.d4#
- 1...Bxe7!
- 1...Ke5
- 1.Be4+?
- 1...Kxe4
- 2.Qd3#
- 1...Kxe6!
- 1...Kxe4
- 1.d4?
- 1...Bxd4
- 2.e4#
- 1...bxc5
- 2.Qxc5#
- 1...Be5
- 2.Sxe7#
- 1...c6
- 2.Qb3#
- 1...d6
- 2.c6#
- 1...dxe6!
- 1...Bxd4
- 1.Sf4+?
- Keys
- 1.d3!
- 1...bxc5
- 2.Qxd7#
- 1...dxe6
- 2.Be4#
- 1...Bd4
- 2.e4#
- 1...Be5
- 2.Sxe7#
- 1...c6
- 2.Qc4#
- 1...d6
- 2.c6#
- 1...bxc5
- 1.d3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(f);SBLOCK::P(C)
- B(f);N_GUARD,SBLOCK::S(J),XP(i)
- P(a);OGATE,XP(B)::P(A)
- P(h);SBLOCK::QAR(F)+P(G)
- Tries
- Try
- S(J);CHECK
- Vars
- K(c);P-FLIGHT,S_CUTP(d)::P(B)
- Refutation
- P(d);XS(J)
- Try
- S(J);CHECK,XP(i)
- Vars
- K(c);P-FLIGHT,S_CUTB(f)::P(B)
- Refutation
- B(f);XS(J)
- Try
- B(H);CHECK
- Vars
- K(c);N_GUARD,S_FLIGHT,XB(H)::QAB1(F)
- Refutation
- K(c);S_FLIGHT,XP(I)
- Try
- P(B);
- Vars
- B(f);SBLOCK,XP(B)::P(C)
- P(e);OGATE,P_SPINP(e),XP(G)::QAR1(F),XP(e)
- B(f);N_GUARD::S(J),XP(i)
- P(g);SBLOCK::QAB(F)
- P(h);SBLOCK::QAR(F)+P(G)
- Refutation
- P(h);XP(I)
- Try
- Actual
- P(B);
- Vars
- P(e);P_SPINP(e),SBLOCK,XP(G)::QAR2(F),XP(h)
- P(h);SBLOCK,XP(I)::B(H)
- B(f);SBLOCK::P(C)
- B(f);N_GUARD,SBLOCK::S(J),XP(i)
- P(g);SBLOCK::QAB1(F)
- P(h);SBLOCK::QAR(F)+P(G)
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).