MESON Chess Problem Database
Problem Display
PID: 55163 (K2N3B/n6r/3p3b/p2k2p1/3Npn2/2Q4B/8/3br3 w - - 0 1)
Ahues, Herbert Siegfried Oskar
3rd Prize, Schweizerische Schachzeitung, 1962
#2
6 + 11
| 23 | Die Schwalbe | 1965 |
| 3747 | FIDE Album (1962-1964) | 1968 |
| 6479 | Problemschach (Sidler) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Be6#
- 1...Sg2
- 2.Be6#
- 1...Sd3
- 2.Be6#
- 1...Sh5
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sg6
- 2.Be6#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Sc8
- 2.Qc6#
- 1...Se2
- Tries
- 1.Sc2?
- threat
- 2.Qd4#
- 1...Se2
- 2.Se3#
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Bg7!
- threat
- 1.Se2?
- threat
- 2.Qd4#
- 1...Sxe2
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Bg7!
- threat
- 1.Sb3?
- threat
- 2.Qd4#
- 1...Se2
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Bg7!
- threat
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Se2
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Bg7!
- threat
- 1.Sf5?
- threat
- 2.Qd4#
- 1...Bg7
- 2.Se7#
- 1...Se2
- 2.Se3#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Se6!
- threat
- 1.S4c6?
- threat
- 2.Qd4#
- 1...Sxc6
- 2.Qxc6#
- 1...Bg7
- 2.Se7#
- 1...Se2
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb5!
- threat
- 1.S4e6?
- threat
- 2.Qd4#
- 1...Sxe6
- 2.Bxe6#
- 1...Bg7
- 2.Sc7#
- 1...Sb5
- 2.Qc6#
- 1...Sc6
- 2.Qxc6#
- 1...Se2!
- threat
- 1.Qxa5+?
- 1...Sb5
- 2.Qxb5#
- 1...Kc4!
- 1...Sb5
- 1.Sc2?
- Keys
- 1.Sb5!
- threat
- 2.Qd4#
- 1...Sxb5
- 2.Qc6#
- 1...Bg7
- 2.Sc7#
- 1...Se2
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sc6
- 2.Qxc6#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- S(d);N_GUARD::B(B)
- S(d);N_GUARD::B(B),XS(d)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Tries
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- S(d);N_GUARD::B(B),XS(d)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- S(d);N_GUARD,XS(C)::B(B)
- S(d);N_GUARD::B(B),XS(d)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- S(d);N_GUARD::B(B)
- S(d);N_GUARD::B(B),XS(d)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- S(d);N_GUARD::B(B)
- S(d);N_GUARD::B(B),XS(d)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Refutation
- B(i);
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- B(i);S_CUTR(k)::S(C)
- S(d);S_CUTR(b)::S(C)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Refutation
- S(d);
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- S(j);OGATE,XS(C)::QAB1(A),XS(j)
- B(i);S_CUTR(k)::S(C)
- S(d);N_GUARD::B(B)
- S(d);N_GUARD::B(B),XS(d)
- Refutation
- S(j);
- Try
- S(C);
- Threat
- QAR1(A)
- Vars
- S(d);OGATE,XS(C)::B(B),XS(d)
- B(i);S_CUTR(k)::S(C)
- S(j);N_GUARD::QAB1(A)
- S(j);N_GUARD::QAB1(A),XS(j)
- Refutation
- S(d);
- Try
- Q(A);CHECK,XP(e)
- Vars
- S(j);N_GUARD,P_SPINS(j)::QAR2(A),XS(j)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- S(C);
- Threat
- QAR1(A)
- Vars
- S(j);N_GUARD,XS(C)::QAB1(A)
- B(i);S_CUTR(k)::S(C)
- S(d);N_GUARD::B(B)
- S(d);N_GUARD::B(B),XS(d)
- S(j);N_GUARD::QAB1(A),XS(j)
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).