MESON Chess Problem Database
Problem Display
PID: 82368 (8/3nN3/3Q1P1p/R2n1Nkp/R1b5/6P1/1r1p4/B2B3K w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Schachzeitung, 1996
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sf4
- 2.gxf4#
- 1...S5xf6
- 2.Qf4#
- 1...h4
- 2.gxh4#
- 1...Sf4
- Tries
- 1.Sh4?
- threat
- 2.Qf4#
- 1...Bb5
- 2.Sf3#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Rb5!
- threat
- 1.Sg7?
- threat
- 2.Qf4#
- 1...Rb5
- 2.Se6#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Bb5!
- threat
- 1.Sh4?
- Keys
- 1.Sd4!
- threat
- 2.Qf4#
- 1...Rb5
- 2.Se6#
- 1...Bb5
- 2.Sf3#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- S(d);OGATE::P(D),XS(d)
- S(d);N_GUARD,SBLOCK,XP(I)::QAB1(H)
- P(f);OGATE::P(D),XP(f)
- Tries
- Try
- S(G);P_PINS(d)
- Threat
- QAB1(H)
- Vars
- B(c);N_SPINS(d)::S(G)
- S(h);N_GUARD,N_SPINS(d)::QAR2(H)
- S(h);N_GUARD,N_SPINS(d)::QAR2(H),XS(h)
- Refutation
- R(a);N_SPINS(d)
- Try
- S(G);P_PINS(d)
- Threat
- QAB1(H)
- Vars
- R(a);N_SPINS(d)::S(G)
- S(h);N_GUARD,N_SPINS(d)::QAR2(H)
- S(h);N_GUARD,N_SPINS(d)::QAR2(H),XS(h)
- Refutation
- B(c);N_SPINS(d)
- Try
- Actual
- S(G);P_PINS(d)
- Threat
- QAB1(H)
- Vars
- R(a);N_SPINS(d)::S(G)
- B(c);N_SPINS(d)::S(G)
- S(h);N_GUARD,N_SPINS(d)::QAR2(H)
- S(h);N_GUARD,N_SPINS(d)::QAR2(H),XS(h)
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).