MESON Chess Problem Database
Problem Display
PID: 237730 (3KBQ2/2NR4/1P3p2/3N4/nPkp4/2Pp4/P7/4b3 w - - 0 1)
Ellerman, Arnoldo
Arbejder-Skak, 1948
#2
10 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Qc5#
- 1...Sxc3
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sxb6
- 2.Qc5#
- 1...dxc3
- 2.Se3#
- 1...Sb2
- Tries
- 1.Rd6?
- threat
- 2.Bb5#
- 1...Sxc3
- 2.Rc6#
- 1...dxc3!
- threat
- 1.Re7?
- threat
- 2.Bb5#
- 1...dxc3
- 2.Re4#
- 1...Sxc3!
- threat
- 1.Rf7?
- threat
- 2.Bb5#
- 1...Sxc3
- 2.Qc5#
- 1...dxc3!
- threat
- 1.Rh7?
- threat
- 2.Bb5#
- 1...Sxc3
- 2.Qc5#
- 1...dxc3!
- threat
- 1.Rd6?
- Keys
- 1.Rg7!
- threat
- 2.Bb5#
- 1...Sxc3
- 2.Qc5#
- 1...dxc3
- 2.Rg4#
- threat
- 1.Rg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- S(c);N_GUARD::QAR1(J)
- S(c);N_GUARD,XP(B)::QAR1(J)
- S(c);N_GUARD::QAR1(J),XS(c)
- S(c);N_GUARD,XP(E)::QAR1(J)
- P(e);N_GUARD,SBLOCK,XP(B)::S(D)
- Tries
- Try
- R(G);
- Threat
- B(I)
- Vars
- S(c);N_GUARD,XP(B)::R(G)
- Refutation
- P(e);XP(B)
- Try
- R(G);
- Threat
- B(I)
- Vars
- P(e);OGATEB,XP(B)::R(G)
- Refutation
- S(c);XP(B)
- Try
- R(G);
- Threat
- B(I)
- Vars
- S(c);N_GUARD,XP(B)::QAR1(J)
- Refutation
- P(e);XP(B)
- Try
- R(G);
- Threat
- B(I)
- Vars
- S(c);N_GUARD,XP(B)::QAR1(J)
- Refutation
- P(e);XP(B)
- Try
- Actual
- R(G);
- Threat
- B(I)
- Vars
- S(c);N_GUARD,XP(B)::QAR1(J)
- P(e);OGATEB,XP(B)::R(G)
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).