MESON Chess Problem Database
Problem Display
PID: 152104 (K4k1n/1Q2R1NP/p4Np1/8/7r/2B2n2/5R2/4r2q w - - 0 1)
Ahues, Herbert Siegfried Oskar
Bulletin Ouvrier des Echecs, 1948
#2
8 + 8
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Se6#
- 2.Re8#
- 1...Rb1
- 2.Se6#
- 2.Re8#
- 1...Rc1
- 2.Se6#
- 2.Re8#
- 1...Rd1
- 2.Se6#
- 2.Re8#
- 1...Rf1
- 2.Se6#
- 2.Re8#
- 1...Rg1
- 2.Se6#
- 2.Re8#
- 1...Re6
- 2.Sxe6#
- 1...Se5
- 2.Se6#
- 2.Re8#
- 1...Sf7
- 2.Rxf7#
- 1...Ra1
- Tries
- 1.Bb4?
- threat
- 2.Sd7#
- 2.Re4#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Rxe7
- 2.Qxe7#
- 1...Rxh7
- 2.Rxe1#
- 2.Ree2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Re6#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Sf7
- 2.Rxf7#
- 1...Qh3
- 2.Re4#
- 2.Rf7#
- 2.Re8#
- 1...Qh2
- 2.Sd7#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 1...Rb1
- 2.Sd7#
- 2.Se6#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Rc1
- 2.Sd7#
- 2.Se6#
- 2.Rf7#
- 2.Re8#
- 1...Rd1
- 2.Se6#
- 2.Rf7#
- 2.Re8#
- 1...Ree4
- 2.Sd7#
- 2.Rxe4#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Re5
- 2.Sd7#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Re6
- 2.Sd7#
- 2.Sxe6#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Rc4
- 2.Sd7#
- 2.Rf7#
- 2.Re8#
- 1...Rd4
- 2.Rf7#
- 2.Re8#
- 1...Rhe4
- 2.Sd7#
- 2.Rxe4#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Rh5
- 2.Sd7#
- 2.Re5#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Sg1
- 2.Sd7#
- 2.Re4#
- 2.Rf7#
- 2.Re8#
- 1...Sd2
- 2.Sd7#
- 2.Re4#
- 2.Rf7#
- 2.Re8#
- 1...Sh2
- 2.Sd7#
- 2.Re4#
- 2.Rf7#
- 2.Re8#
- 1...Sd4
- 2.Sd7#
- 2.Rxe1#
- 2.Ree2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Re6#
- 2.Rf7#
- 2.Re8#
- 1...Se5
- 2.Sd7#
- 2.Se6#
- 2.Rf7#
- 2.Re8#
- 1...Sg5
- 2.Sd7#
- 2.Re4#
- 2.Rf7#
- 2.Re8#
- 1...a5
- 2.Sd7#
- 2.Rf7#
- 2.Re8#
- 2.Qc8#
- 2.Qb8#
- 1...Rxb4!
- threat
- 1.Be5?
- threat
- 2.Se6#
- 2.Re8#
- 1...Sf7
- 2.Se6#
- 2.Rxf7#
- 1...Qh3
- 2.Re8#
- 1...Sd4
- 2.Re8#
- 1...Sg5
- 2.Re8#
- 1...Rxe5!
- threat
- 1.Bb4?
- Keys
- 1.Re6!
- threat
- 2.Qe7#
- 1...Rxe6
- 2.Sxe6#
- 1...Sf7
- 2.Sd7#
- 1...Sg1
- 2.Sd7#
- 1...Sd2
- 2.Sd7#
- 1...Sh2
- 2.Sd7#
- 1...Sd4
- 2.Bb4#
- 1...Se5
- 2.Re8#
- 1...Sg5
- 2.Sd7#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(F),XR(a)
- S(h);N_GUARD::R1(E),XS(h)
- Tries
- Try
- B(B);
- Threat
- DUALS(6)
- Vars
- R(a);OGATE,P_SPINR(a),XR(E)::QAB1(D),XR(a)
- S(h);::B(B)+R(E),DCHECK,XS(h)
- Refutation
- R(d);XB(B)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- Q(b);::R1(E)
- S(c);P_PINQ(D)::R1(E)
- Refutation
- R(a);XB(B)
- Try
- Actual
- R(E);
- Threat
- QAB1(D)
- Vars
- R(a);XR(E)::S(F),XR(a)
- S(h);SBLOCK::S(C)
- S(c);P_PINQ(D)::R(A)+S(C),DCHECK
- S(c);P_PINQ(D),S_CUTR(d)::B(B)
- S(c);P_PINQ(D),S_CUTR(a)::R1(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).