MESON Chess Problem Database
Problem Display
PID: 203498 (8/Q2K4/8/1p1p4/1kp4B/2N5/3q4/N7 w - - 0 1)
Lobel, Ernst
Arbeiter Schachzeitung, 1924
#2
5 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sa2#
- 2.Sxd5#
- 1...Qe1
- 2.Sa2#
- 2.Sxd5#
- 1...Qxc3
- 2.Be7#
- 1...Qe3
- 2.Sa2#
- 2.Sxd5#
- 1...Qf4
- 2.Sa2#
- 2.Sxd5#
- 1...Qg5
- 2.Sa2#
- 1...Qh6
- 2.Sa2#
- 2.Sxd5#
- 1...Qd1
- 2.Sa2#
- 1...Qa2
- 2.Sxa2#
- 2.Sxd5#
- 1...Qb2
- 2.Sxd5#
- 1...Qc2
- 2.Sxd5#
- 1...Qe2
- 2.Sxd5#
- 1...Qf2
- 2.Sxd5#
- 1...Qh2
- 2.Sxd5#
- 1...Qd3
- 2.Sa2#
- 1...Qd4
- 2.Sa2#
- 1...d4
- 2.Sd5#
- 1...Qc1
- Tries
- 1.Bf6?
- 1...Qxc3
- 2.Be7#
- 1...Qd4
- 2.Sa2#
- 1...d4
- 2.Sd5#
- 1...Qc1
- 2.Sa2#
- 2.Sxd5#
- 1...Qe1
- 2.Sa2#
- 2.Sxd5#
- 1...Qe3
- 2.Sa2#
- 2.Sxd5#
- 1...Qf4
- 2.Sa2#
- 2.Sxd5#
- 1...Qg5
- 2.Sa2#
- 1...Qh6
- 2.Sa2#
- 2.Sxd5#
- 1...Qd1
- 2.Sa2#
- 1...Qa2
- 2.Sxa2#
- 2.Sxd5#
- 1...Qb2
- 2.Sxd5#
- 1...Qc2
- 2.Sxd5#
- 1...Qe2
- 2.Sxd5#
- 1...Qf2
- 2.Sxd5#
- 1...Qh2
- 2.Sxd5#
- 1...Qd3
- 2.Sa2#
- 1...Qg2!
- 1...Qxc3
- 1.Bf6?
- Keys
- 1.Bf2!
- 1...Kxc3
- 2.Qa3#
- 1...Qxc3
- 2.Bc5#
- 1...Qxf2
- 2.Sxd5#
- 1...Qc1
- 2.Sa2#
- 2.Sxd5#
- 1...Qe1
- 2.Sa2#
- 2.Sxd5#
- 1...Qe3
- 2.Sa2#
- 2.Sxd5#
- 1...Qf4
- 2.Sa2#
- 2.Sxd5#
- 1...Qg5
- 2.Sa2#
- 1...Qh6
- 2.Sa2#
- 2.Sxd5#
- 1...Qd1
- 2.Sa2#
- 1...Qa2
- 2.Sxa2#
- 2.Sxd5#
- 1...Qb2
- 2.Sxd5#
- 1...Qc2
- 2.Sxd5#
- 1...Qe2
- 2.Sxd5#
- 1...Qd3
- 2.Sa2#
- 1...Qd4
- 2.Sa2#
- 1...d4
- 2.Sd5#
- 1...Kxc3
- 1.Bf2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(a);SBLOCK,XS(B)::B(C)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XP(e)
- P(e);S_CUTQ(a)::S(B)
- Tries
- Try
- B(C);
- Vars
- Q(a);SBLOCK,XS(B)::B(C)
- Q(a);N_GUARD::S(B)
- P(e);S_CUTQ(a)::S(B)
- Q(a);N_GUARD::S(B),XP(e)
- Refutation
- Q(a);
- Try
- Actual
- B(C);
- Vars
- K(b);S_FLIGHT,XS(B)::QAR2(D)
- Q(a);SBLOCK,XS(B)::B(C)
- Q(a);N_GUARD,XB(C)::S(B),XP(e)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XP(e)
- P(e);S_CUTQ(a)::S(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).