MESON Chess Problem Database
Problem Display
PID: 209089 (4Bk1K/2Q5/8/8/2b2r2/8/7b/5R2 w - - 0 1)
Lackner, Detlef
Deutsche Schachblatter, 1989
#2
4 + 4
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Tries
- 1.Ba4?
- threat
- 2.Qg7#
- 1...Rf7
- 2.Qd8#
- 1...Bf7
- 2.Qd6#
- 2.Qc5#
- 1...Bb5!
- threat
- 1.Bb5?
- threat
- 2.Qg7#
- 1...Rf7
- 2.Qd8#
- 1...Bf7
- 2.Qd6#
- 2.Qc5#
- 1...Bxb5!
- threat
- 1.Bh5?
- threat
- 2.Qd6#
- 2.Qd8#
- 2.Qc5#
- 2.Qg7#
- 1...Rxf1
- 2.Qd8#
- 2.Qg7#
- 1...Rf7
- 2.Qd8#
- 1...Rf2
- 2.Qd8#
- 2.Qg7#
- 1...Rf3
- 2.Qd8#
- 2.Qg7#
- 1...Rf5
- 2.Qd8#
- 2.Qg7#
- 1...Rf6
- 2.Qd8#
- 2.Qg7#
- 1...Bg1
- 2.Qd6#
- 2.Qd8#
- 2.Qg7#
- 1...Bb5
- 2.Qd6#
- 2.Qc5#
- 2.Qg7#
- 1...Bf7!
- threat
- 1.Bg6?
- threat
- 2.Qd6#
- 2.Qd8#
- 2.Qc5#
- 2.Qg7#
- 1...Rxf1
- 2.Qd8#
- 2.Qg7#
- 1...Rf7
- 2.Qd8#
- 1...Rf2
- 2.Qd8#
- 2.Qg7#
- 1...Rf3
- 2.Qd8#
- 2.Qg7#
- 1...Rf5
- 2.Qd8#
- 2.Qg7#
- 1...Rf6
- 2.Qd8#
- 2.Qg7#
- 1...Bg1
- 2.Qd6#
- 2.Qd8#
- 2.Qg7#
- 1...Bb5
- 2.Qd6#
- 2.Qc5#
- 2.Qg7#
- 1...Bf7!
- threat
- 1.Ba4?
- Keys
- 1.Bc6!
- threat
- 2.Qg7#
- 1...Rf7
- 2.Qd8#
- 1...Bf7
- 2.Qd6#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- B(C);
- Threat
- QAB1(B)
- Vars
- R(c);::QAR2(B)
- Refutation
- B(b);
- Try
- B(C);
- Threat
- QAB1(B)
- Vars
- R(c);::QAR2(B)
- Refutation
- B(b);XB(C)
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- R(c);::QAR2(B)
- Refutation
- B(b);N_SPINR(c)
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- R(c);::QAR2(B)
- Refutation
- B(b);N_SPINR(c)
- Try
- Actual
- B(C);
- Threat
- QAB1(B)
- Vars
- R(c);::QAR2(B)
- B(b);N_SPINR(c),SBLOCK::QAB(B)
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).