MESON Chess Problem Database
Problem Display
PID: 256509 (8/Q2K4/5p2/3pk2P/1P2p1p1/1P2p1P1/4P3/8 w - - 0 1)
Senft, Adolf
Wiener Schachzeitung, 1938
#2
7 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...d4
- 2.Qc5#
- 2.Qa5#
- 1...d4
- Tries
- 1.Qd4+?
- 1...Kf5
- 2.Qxd5#
- 1...Kxd4!
- 1...Kf5
- 1.Qc5?
- 1...Kf5
- 2.Qxd5#
- 1...f5!
- 1...Kf5
- 1.Qb8+?
- 1...Kf5
- 2.Qf4#
- 1...Kd4!
- 1...Kf5
- 1.Qa1+?
- 1...d4
- 2.Qa5#
- 1...Kf5!
- 1...d4
- 1.Qa5?
- 1...Kd4
- 2.Qa1#
- 1...Kf5
- 2.Qxd5#
- 1...f5!
- 1...Kd4
- 1.Qc7+?
- 1...Kf5
- 2.Qf4#
- 1...Kd4!
- 1...Kf5
- 1.Qd4+?
- Keys
- 1.Qa8!
- 1...Kd4
- 2.Qa1#
- 1...Kf5
- 2.Qxd5#
- 1...f5
- 2.Qh8#
- 1...d4
- 2.Qa5#
- 1...Kd4
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(F);CHECK
- Vars
- K(e);N_GUARD,P-FLIGHT::QAR2(F),XP(d)
- Refutation
- K(e);S_FLIGHT,XQ(F)
- Try
- Q(F);P_PINP(d)
- Vars
- K(e);N_GUARD,P-FLIGHT::QAR2(F),XP(d)
- Refutation
- P(f);
- Try
- Q(F);CHECK
- Vars
- K(e);OGATE,P-FLIGHT::QAR1(F)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(F);CHECK
- Vars
- P(d);OGATEB,P_SPINP(d),SBLOCK::QAR(F)
- Refutation
- K(e);P-FLIGHT
- Try
- Q(F);P_PINP(d)
- Vars
- K(e);N_GUARD,N_SPINP(d),S_CUTP(d),S_FLIGHT::QAB(F)
- K(e);N_GUARD,P-FLIGHT::QAR2(F),XP(d)
- Refutation
- P(f);
- Try
- Q(F);CHECK
- Vars
- K(e);OGATE,P-FLIGHT::QAR1(F)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- Q(F);
- Vars
- K(e);N_GUARD,S_CUTP(d),S_FLIGHT::QAB(F)
- K(e);N_GUARD,P-FLIGHT::QAR2(F),XP(d)
- P(f);OGATEB,SBLOCK::QAB(F)
- P(d);OGATEB,SBLOCK::QAR(F)
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).