MESON Chess Problem Database
Problem Display
PID: 246638 (3r4/BQ3p1p/p2k4/rb4n1/6N1/3nRp2/B2N3K/1q1R4 w - - 0 1)
Ellerman, Arnoldo
El Ajedrez Espanol, 1953
#2
8 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bc6
- 2.Qe7#
- 1...Bd7
- 2.Sc4#
- 1...Be8
- 2.Sc4#
- 1...Sc1
- 2.Sc4#
- 2.Se4#
- 1...Se1
- 2.Sc4#
- 2.Se4#
- 1...Sb2
- 2.Sc4#
- 2.Se4#
- 1...Sf2
- 2.Sc4#
- 2.Se4#
- 1...Sb4
- 2.Sc4#
- 2.Se4#
- 1...Sf4
- 2.Sc4#
- 2.Se4#
- 1...Sc5
- 2.Sc4#
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Se6
- 2.Se4#
- 1...Ba4
- Tries
- 1.Bc5+?
- 1...Sxc5
- 2.Sc4#
- 2.Se4#
- 1...Kxc5!
- 1...Sxc5
- 1.Re6+?
- 1...Sxe6
- 2.Se4#
- 1...fxe6!
- 1...Sxe6
- 1.Bc5+?
- Keys
- 1.Sh6!
- threat
- 2.Sf5#
- 1...Se4
- 2.Sxf7#
- 1...Ba4
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bc6
- 2.Qe7#
- 1...Bd7
- 2.Sc4#
- 1...Be8
- 2.Sc4#
- 1...Sc1
- 2.Sc4#
- 1...Se1
- 2.Sc4#
- 1...Sb2
- 2.Sc4#
- 1...Sf2
- 2.Sc4#
- 1...Sb4
- 2.Sc4#
- 1...Sf4
- 2.Sc4#
- 1...Sc5
- 2.Sc4#
- 1...Se5
- 2.Se4#
- 1...f5
- 2.Sxf5#
- threat
- 1.Sh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- B(e);N_GUARD::S(C)
- B(e);N_GUARD::S(C),XB(e)
- B(e);SBLOCK::QAB1(H)
- S(b);::R(A)+S(C),DCHECK
- S(f);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(f)
- Tries
- Try
- B(G);CHECK
- Refutation
- K(h);S_FLIGHT,XB(G)
- Try
- R(E);CHECK
- Vars
- S(f);XR(E)::S(C)
- Refutation
- P(i);XR(E)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- S(f);N_GUARD::S(F),XP(i)
- B(e);N_GUARD::S(C)
- B(e);N_GUARD::S(C),XB(e)
- B(e);SBLOCK::QAB1(H)
- S(b);::R(A)+S(C),DCHECK
- S(b);SBLOCK::R(A)+S(C),DCHECK
- P(i);::S(F),XP(i)
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).