MESON Chess Problem Database
Problem Display
PID: 189876 (3Q4/5B2/3B4/3n1R2/3k1n2/8/3K4/8 w - - 0 1)
Lissner, Morris
Magyar Sakkujsag, 1912
#2
5 + 3
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Rxf4#
- 1...Sb4
- 2.Rxf4#
- 1...Sb6
- 2.Rxf4#
- 1...Sc7
- 2.Rxf4#
- 1...Se7
- 2.Rxf4#
- 1...Se3
- Tries
- 1.Qa5?
- 1...Kc4
- 2.Qb4#
- 2.Qa4#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sd3
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sh5
- 2.Qxd5#
- 1...Se6
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...Sc3
- 2.Qb4#
- 2.Qe5#
- 1...Se3
- 2.Rxf4#
- 2.Qe5#
- 1...Sb4
- 2.Rxf4#
- 2.Qxb4#
- 2.Qe5#
- 1...Sb6
- 2.Rxf4#
- 2.Qe5#
- 1...Sf6
- 2.Qb4#
- 2.Qa4#
- 2.Qe5#
- 1...Sc7
- 2.Rxf4#
- 2.Qb4#
- 2.Qa4#
- 2.Qe5#
- 1...Se7
- 2.Rxf4#
- 2.Qb4#
- 2.Qa4#
- 2.Qe5#
- 1...Ke4!
- 1...Kc4
- 1.Qb6+?
- 1...Kc4
- 2.Rxf4#
- 2.Qb4#
- 1...Sxb6
- 2.Rxf4#
- 1...Ke4!
- 1...Kc4
- 1.Qa5?
- Keys
- 1.Qa8!
- 1...Kc4
- 2.Qa4#
- 1...Ke4
- 2.Rxf4#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sd3
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sh5
- 2.Qxd5#
- 1...Se6
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...Sc3
- 2.Bc5#
- 1...Se3
- 2.Bc5#
- 2.Rxf4#
- 1...Sb4
- 2.Bc5#
- 2.Rxf4#
- 1...Sb6
- 2.Bc5#
- 2.Rxf4#
- 1...Sf6
- 2.Bc5#
- 2.Qa4#
- 1...Sc7
- 2.Bc5#
- 2.Rxf4#
- 2.Qa4#
- 1...Se7
- 2.Bc5#
- 2.Rxf4#
- 2.Qa4#
- 1...Kc4
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 5
- Sets
- S(c);N_GUARD::R(B),XS(b)
- Tries
- Try
- Q(E);
- Vars
- S(b);N_GUARD::QAR1(E),XS(c)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(E);CHECK
- Vars
- S(c);XQ(E)::R(B),XS(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- Q(E);
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR2(E)
- K(a);P-FLIGHT,P_SPINS(c)::R1(B),XS(b)
- S(b);N_GUARD::QAR1(E),XS(c)
- S(c);::B(C)
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).