MESON Chess Problem Database
Problem Display
PID: 237252 (4r3/7n/5P1K/2pN3R/R3P1kN/6p1/6B1/4r1n1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Schachzeitung, 2010
#2
8 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sh3
- 2.Bf3#
- 1...Sh3
- Tries
- 1.Sf3?
- threat
- 2.Rh4#
- 1...R8xe4
- 2.Se5#
- 1...Sxf3
- 2.Bh3#
- 1...R1xe4!
- threat
- 1.Sf5?
- threat
- 2.Rh4#
- 1...R1xe4
- 2.Sfe3#
- 1...Sf3
- 2.Bh3#
- 1...R8xe4!
- threat
- 1.Bf3+?
- 1...Kh3
- 2.Sg2#
- 2.Sf5#
- 2.Sg6#
- 1...Sxf3!
- 1...Kh3
- 1.e5+?
- 1...Re4
- 2.Rxe4#
- 1...c4!
- 1...Re4
- 1.Sf3?
- Keys
- 1.Sg6!
- threat
- 2.Rh4#
- 1...R1xe4
- 2.Se3#
- 1...R8xe4
- 2.Se5#
- 1...Sf3
- 2.Bh3#
- threat
- 1.Sg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD,SBLOCK::B(A)
- Tries
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(g);N_GUARD,P_SPINR(g),XP(C)::S(D)
- S(b);N_GUARD,SBLOCK,XS(D)::B(A)
- Refutation
- R(a);P_SPINR(a),XP(C)
- Try
- S(D);
- Threat
- R1(F)
- Vars
- R(a);N_GUARD,P_SPINR(a),XP(C)::S(D)
- S(b);N_GUARD,SBLOCK::B(A)
- Refutation
- R(g);P_SPINR(g),XP(C)
- Try
- B(A);CHECK
- Refutation
- S(b);XB(A)
- Try
- P(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::R(B),XR(a)
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- S(D);
- Threat
- R1(F)
- Vars
- R(a);N_GUARD,P_SPINR(a),XP(C)::S(E)
- R(g);N_GUARD,P_SPINR(g),XP(C)::S(D)
- S(b);N_GUARD,SBLOCK::B(A)
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).