MESON Chess Problem Database
Problem Display
PID: 232620 (7K/2p1B3/1pP1bQ2/3kp3/R4p2/5nP1/N1RpP1N1/5n2 w - - 0 1)
Hoffmann, Fritz
Freie Presse, 1968
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bh3
- 2.Sc3#
- 1...Bg4
- 2.Sc3#
- 1...Bf5
- 2.Sc3#
- 1...Bd7
- 2.Sc3#
- 1...Bf7
- 2.Sc3#
- 2.Qxf7#
- 1...Bc8
- 2.Sc3#
- 1...Bg8
- 2.Sc3#
- 1...fxg3
- 2.e4#
- 1...e4
- 2.Sb4#
- 2.Sxf4#
- 1...b5
- 2.Rc5#
- 1...Bh3
- Tries
- 1.Qxe5+?
- 1...Sxe5
- 2.Sxf4#
- 1...Kxe5!
- 1...Sxe5
- 1.Qxf4?
- threat
- 2.Sb4#
- 2.Qc4#
- 2.Qe4#
- 2.e4#
- 1...Sxg3
- 2.Sb4#
- 2.Se3#
- 2.Qc4#
- 1...Bh3
- 2.Qc4#
- 1...Bg4
- 2.Qc4#
- 1...Bf5
- 2.Qc4#
- 1...Bd7
- 2.Qc4#
- 1...Bf7
- 2.Qc4#
- 2.Qxf7#
- 1...Bc8
- 2.Qc4#
- 1...Bg8
- 2.Qc4#
- 1...Se3
- 2.Sb4#
- 2.Sxe3#
- 2.Qe4#
- 1...Sd4
- 2.Sb4#
- 2.e4#
- 1...Sg5
- 2.Sb4#
- 2.Qc4#
- 1...e4
- 2.Qxe4#
- 1...b5
- 2.Sb4#
- 2.Rc5#
- 2.Qe4#
- 2.e4#
- 1...exf4!
- threat
- 1.Qf5?
- threat
- 2.Sxf4#
- 2.Qe4#
- 1...Sxg3
- 2.Sxf4#
- 1...fxg3
- 2.Sf4#
- 2.Qe4#
- 2.e4#
- 1...Bd7
- 2.Sxf4#
- 2.Qxd7#
- 1...Bf7
- 2.Sxf4#
- 2.Qd7#
- 2.Qxf7#
- 1...Bc8
- 2.Sxf4#
- 1...Bg8
- 2.Sxf4#
- 2.Qd7#
- 1...Sd4
- 2.Sb4#
- 2.Sxf4#
- 1...Sg5
- 2.Sxf4#
- 2.Qd3#
- 1...Bxf5!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 1...e4
- 2.Qxe4#
- 1...Bh3
- 2.Sc3#
- 1...Bg4
- 2.Sc3#
- 1...Bf5
- 2.Sc3#
- 1...Bd7
- 2.Sc3#
- 1...Bf7
- 2.Sc3#
- 2.Qxf7#
- 1...Bc8
- 2.Sc3#
- 1...Bg8
- 2.Sc3#
- 2.Qxg8#
- 1...Sd4
- 2.Sb4#
- 1...Sg5
- 2.Qd3#
- 1...Sxg3!
- threat
- 1.Qxe5+?
- Keys
- 1.gxf4!
- threat
- 2.e4#
- 1...exf4
- 2.Sxf4#
- 1...Sd4
- 2.Qxe5#
- 1...Bf5
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sg3
- 2.Se3#
- 1...Sg5
- 2.Qxe5#
- 1...e4
- 2.Sb4#
- threat
- 1.gxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- B(h);::S(A)
- P(d);N_GUARD,XP(E)::P(C)
- P(g);N_GUARD::R1(B)
- Tries
- Try
- Q(H);CHECK,XP(f)
- Vars
- S(c);SBLOCK,XQ(H)::S(D),XP(d)
- Refutation
- K(e);P-FLIGHT,XQ(H)
- Try
- Q(H);XP(d)
- Threat
- DUALS(4)
- Vars
- B(h);::QAB1(H)
- P(f);::QAB1(H),XP(f)
- Refutation
- P(f);XQ(H)
- Try
- Q(H);P_PINP(f)
- Threat
- DUALS(2)
- Vars
- S(a);XP(E)::S(D),XP(d)
- B(h);::S(D),XP(d)
- Refutation
- B(h);N_SPINP(f),XQ(H)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- P(f);::QAB1(H),XP(f)
- B(h);::S(A)
- S(c);SBLOCK::S(A)
- S(c);N_GUARD::QAR2(H)
- Refutation
- S(a);XP(E)
- Try
- Actual
- P(E);XP(d)
- Threat
- P(C)
- Vars
- P(f);XP(E)::S(D),XP(f)
- S(c);N_GUARD::QAR1(H),XP(f)
- B(h);::S(A)
- S(a);N_GUARD::S(D),XS(a)
- S(a);N_GUARD::S(D)
- P(f);SBLOCK::S(A)
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).