MESON Chess Problem Database
Problem Display
PID: 232616 (8/1K1B4/p7/N4Q2/1kP1p3/4b3/1B2N3/8 w - - 0 1)
Hoffmann, Fritz
Freie Presse, 1967
#2
7 + 4
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Qf3?
- 1...Kxa5
- 2.Bc3#
- 1...Kc5
- 2.Ba3#
- 2.Qf8#
- 1...Bc1
- 2.Qa3#
- 1...Bg1
- 2.Qa3#
- 1...Bd2
- 2.Qa3#
- 1...Bf2
- 2.Qa3#
- 1...Bd4
- 2.Qa3#
- 1...Bf4
- 2.Qa3#
- 1...Bc5
- 2.Qa3#
- 2.Qc3#
- 1...Bg5
- 2.Qa3#
- 1...Bb6
- 2.Qa3#
- 1...Bh6
- 2.Qa3#
- 1...Ba7
- 2.Qa3#
- 1...exf3!
- 1...Kxa5
- 1.Qc5+?
- 1...Kxc5
- 2.Ba3#
- 1...Bxc5!
- 1...Kxc5
- 1.Qf8+?
- 1...Kxa5
- 2.Bc3#
- 2.Qa3#
- 1...Bc5!
- 1...Kxa5
- 1.Qf3?
- Keys
- 1.Qh3!
- 1...Kxa5
- 2.Bc3#
- 1...Kc5
- 2.Ba3#
- 1...Bc1
- 2.Qa3#
- 1...Bg1
- 2.Qa3#
- 1...Bd2
- 2.Qa3#
- 1...Bf2
- 2.Qa3#
- 1...Bd4
- 2.Qa3#
- 1...Bf4
- 2.Qa3#
- 1...Bc5
- 2.Qa3#
- 2.Qc3#
- 1...Bg5
- 2.Qa3#
- 1...Bb6
- 2.Qa3#
- 1...Bh6
- 2.Qa3#
- 1...Ba7
- 2.Qa3#
- 1...Kxa5
- 1.Qh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(E);
- Vars
- K(b);S_FLIGHT,XS(D)::B(A)
- B(a);OGATE::QAB1(E)
- Refutation
- P(c);XQ(E)
- Try
- Q(E);CHECK
- Vars
- K(b);S_FLIGHT,XQ(E)::B(A)
- Refutation
- B(a);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- B(a);P_SPINB(a)
- Try
- Actual
- Q(E);
- Vars
- K(b);S_FLIGHT,XS(D)::B(A)
- K(b);S_FLIGHT::B(A)
- B(a);OGATE::QAB1(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).