MESON Chess Problem Database
Problem Display
PID: 35629 (3n2R1/7K/4Np2/5kN1/1n2bpp1/1Q6/4r1B1/B1b2R2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
1/2 Prize, Schweizer Schach-Magazin, 1992
#2
8 + 9
| 3681 | FIDE Album (1992-1994) | 2001 |
| 702 | Phenix | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Bxe4#
- 1...Rc2
- 2.Bxe4#
- 1...Rd2
- 2.Bxe4#
- 2.Rxf4#
- 1...Rf2
- 2.Bxe4#
- 1...Re3
- 2.Rxf4#
- 1...Ba3
- 2.Rxf4#
- 1...Be3
- 2.Bxe4#
- 1...Sxe6
- 2.Qxe6#
- 1...g3
- 2.Bh3#
- 1...fxg5
- 2.Sg7#
- 2.Rxg5#
- 1...Ra2
- Tries
- 1.Sf7?
- threat
- 2.Sd4#
- 2.Sg7#
- 2.Sd6#
- 2.Sh6#
- 1...Bxg2
- 2.Sd6#
- 1...Sxe6
- 2.Sd6#
- 2.Sh6#
- 1...Bf3
- 2.Sd6#
- 1...Bd5
- 2.Sd4#
- 2.Sg7#
- 1...Sd5
- 2.Sd4#
- 2.Sg7#
- 1...Rb2
- 2.Sd4#
- 2.Sg7#
- 1...Rd2
- 2.Sg7#
- 2.Sh6#
- 2.Rxf4#
- 1...Bb2
- 2.Sg7#
- 2.Rxf4#
- 1...Be3
- 2.Sg7#
- 2.Sd6#
- 2.Sh6#
- 1...Sc2
- 2.Sg7#
- 2.Sd6#
- 2.Sh6#
- 1...Sbc6
- 2.Sg7#
- 2.Sd6#
- 2.Sh6#
- 1...Sdc6
- 2.Sg7#
- 2.Sd6#
- 2.Sh6#
- 1...Sb7
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 1...f3
- 2.Sd6#
- 1...g3
- 2.Sd4#
- 2.Sd6#
- 2.Sh6#
- 2.Bh3#
- 1...Sxf7!
- threat
- 1.Qc3?
- threat
- 2.Qxf6#
- 1...fxg5
- 2.Sg7#
- 2.Qe5#
- 2.Qf6#
- 1...g3
- 2.Bh3#
- 1...Rb2
- 2.Bxe4#
- 1...Bb2
- 2.Rxf4#
- 1...Sd5!
- threat
- 1.Sf7?
- Keys
- 1.Qe3!
- threat
- 2.Bxe4#
- 2.Rxf4#
- 1...Rxg2
- 2.Rxf4#
- 2.Qxe4#
- 1...Rxe3
- 2.Rxf4#
- 1...Bxe3
- 2.Bxe4#
- 1...Bxg2
- 2.Sd4#
- 2.Rxf4#
- 1...Sxe6
- 2.Bxe4#
- 1...fxg5
- 2.Sg7#
- 1...Rb2
- 2.Qxe4#
- 1...Bb2
- 2.Qxf4#
- 1...g3
- 2.Bh3#
- 2.Rxf4#
- 1...Rf2
- 2.Bxe4#
- 2.Qxe4#
- 1...Bb1
- 2.Sd4#
- 2.Rxf4#
- 1...Bc2
- 2.Sd4#
- 2.Rxf4#
- 1...Bd3
- 2.Sd4#
- 2.Rxf4#
- 1...Bf3
- 2.Sd4#
- 1...Bd5
- 2.Sd4#
- 2.Rxf4#
- 1...Bc6
- 2.Sd4#
- 2.Rxf4#
- 1...Bb7
- 2.Sd4#
- 2.Rxf4#
- 1...Ba8
- 2.Sd4#
- 2.Rxf4#
- 1...Sd3
- 2.Bxe4#
- 1...Sd5
- 2.Bxe4#
- 1...f3
- 2.Sg7#
- threat
- 1.Qe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::B(C),XB(d)
- R(b);N_GUARD,N_SPINP(e)::B(C),XB(d)
- R(b);S_CUTB(a)::R1(B),XP(e)
- B(a);N_GUARD::R1(B),XP(e)
- B(a);S_CUTR(b)::B(C),XB(d)
- S(i);OGATE,XS(F)::QAB1(D),XS(i)
- P(f);OGATEB::B(C)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- B(d);XB(C)::S(E)
- B(d);N_SPINP(e)::S(E)
- P(e);::S(E)
- Refutation
- S(i);XS(E)
- Try
- Q(D);
- Threat
- QAR1(D),XP(h)
- Vars
- P(f);OGATEB::B(C)
- R(b);N_GUARD::B(C),XB(d)
- B(a);N_GUARD::R1(B),XP(e)
- Refutation
- S(c);
- Try
- Actual
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(b);XQ(D)::R1(B),XP(e)
- B(a);XQ(D)::B(C),XB(d)
- S(i);XS(F)::B(C),XB(d)
- P(h);SBLOCK,XS(E)::S(F)
- R(b);N_GUARD::QAB1(D),XB(d)
- B(a);N_GUARD::QAR1(D),XP(e)
- B(d);N_SPINP(e)::S(F)
- S(c);::B(C),XB(d)
- P(e);::S(F)
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).