MESON Chess Problem Database
Problem Display
PID: 245907 (8/8/2K2N2/2p1P3/2Pk4/2R1R3/2P2n2/8 w - - 0 1)
Hoffmann, Fritz
Europa-Rochade, 1999
#2
7 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Kb5?
- 1...Sd3
- 2.Rcxd3#
- 1...Sd1
- 2.Rcd3#
- 1...Sh1
- 2.Rcd3#
- 1...Sh3
- 2.Rcd3#
- 1...Sg4
- 2.Rcd3#
- 1...Se4!
- 1...Sd3
- 1.Kd6?
- 1...Sd3
- 2.Rexd3#
- 1...Sd1
- 2.Red3#
- 1...Sh1
- 2.Red3#
- 1...Sh3
- 2.Red3#
- 1...Sg4
- 2.Red3#
- 1...Se4+!
- 1...Sd3
- 1.Rb3?
- 1...Sd3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Sg4
- 2.Re4#
- 1...Kxc4!
- 1...Sd3
- 1.Kb5?
- Keys
- 1.Ra3!
- 1...Kxc4
- 2.Ra4#
- 1...Sd3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Sg4
- 2.Re4#
- 1...Kxc4
- 1.Ra3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- Refutation
- S(a);
- Try
- K(F);P-FLIGHT
- Vars
- S(a);N_GUARD::R1(C),XS(a)
- S(a);N_GUARD::R1(C)
- Refutation
- S(a);CHECK
- Try
- R(B);
- Vars
- S(a);N_GUARD::R1(C)
- S(a);N_GUARD::R1(C),XS(a)
- Refutation
- K(b);P-FLIGHT,XP(D)
- Try
- Actual
- R(B);
- Vars
- K(b);OGATEB,P-FLIGHT,XP(D)::R(B)
- S(a);N_GUARD::R1(C)
- S(a);N_GUARD::R1(C),XS(a)
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).