MESON Chess Problem Database
Problem Display
PID: 82314 (4RB2/b7/8/r3N2r/p1Pp2p1/R2Pk1Pb/4N3/3BK3 w - - 0 1)
Ahues, Herbert Siegfried Oskar
US Problem Bulletin, 1989
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh6
- 2.Bxh6#
- 1...Rh6
- Tries
- 1.Sc1?
- threat
- 2.Sxg4#
- 1...Rhxe5
- 2.Bh6#
- 1...Raxe5!
- threat
- 1.Sg1?
- threat
- 2.Sxg4#
- 1...Rhxe5
- 2.Bh6#
- 1...Raxe5!
- threat
- 1.Sf4?
- threat
- 2.Sxg4#
- 1...Raxe5
- 2.Sd5#
- 1...Rhxe5!
- threat
- 1.Bh6+?
- 1...Rg5
- 2.Bxg5#
- 1...Rxh6!
- 1...Rg5
- 1.Sc1?
- Keys
- 1.Sxd4!
- threat
- 2.Sc2#
- 1...Kxd4
- 2.Sc6#
- 1...Bxd4
- 2.Sxg4#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(g);N_GUARD::B(J),XR(g)
- Tries
- Try
- S(C);
- Threat
- R(I)+S(H),DCHECK,XP(e)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(H)::B(J)
- Refutation
- R(f);P_SPINR(f),XS(H)
- Try
- S(C);
- Threat
- R(I)+S(H),DCHECK,XP(e)
- Vars
- R(g);N_GUARD,P_SPINR(g),XS(H)::B(J)
- Refutation
- R(f);P_SPINR(f),XS(H)
- Try
- S(C);
- Threat
- R(I)+S(H),DCHECK,XP(e)
- Vars
- R(f);N_GUARD,P_SPINR(f),XS(H)::S(C)
- Refutation
- R(g);P_SPINR(g),XS(H)
- Try
- B(J);CHECK
- Vars
- R(g);N_GUARD,P_SPINR(g)::B(J),XR(g)
- Refutation
- R(g);XB(J)
- Try
- Actual
- S(C);XP(d)
- Threat
- S(C)
- Vars
- K(a);S_FLIGHT,XS(C)::S(H)
- B(h);SBLOCK,XS(C)::R(I)+S(H),DCHECK,XP(e)
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).