MESON Chess Problem Database
Problem Display
PID: 151147 (3r1QR1/7r/1R2bpN1/4Nkn1/1n2p3/4p1Kp/8/B7 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Die Schwalbe, 1940
#2
7 + 10
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rh4
- 2.Sxh4#
- 2.Se7#
- 1...Rh5
- 2.Se7#
- 1...Rh6
- 2.Se7#
- 1...Ra7
- 2.Sh4#
- 1...Rb7
- 2.Sh4#
- 1...Rc7
- 2.Sh4#
- 1...Rhd7
- 2.Sh4#
- 1...Re7
- 2.Sh4#
- 2.Sxe7#
- 1...Rf7
- 2.Sh4#
- 1...Rg7
- 2.Sh4#
- 1...Rh8
- 2.Se7#
- 1...Ba2
- 2.Rxf6#
- 2.Qxf6#
- 1...Bb3
- 2.Rxf6#
- 2.Qxf6#
- 1...Bc4
- 2.Rxf6#
- 2.Qxf6#
- 1...Bd5
- 2.Rxf6#
- 2.Qxf6#
- 1...Bd7
- 2.Rxf6#
- 2.Qxf6#
- 1...Bf7
- 2.Se7#
- 1...Bc8
- 2.Rxf6#
- 2.Qxf6#
- 1...Bxg8
- 2.Rxf6#
- 2.Qxf6#
- 1...Sf7
- 2.Se7#
- 1...Rh4
- Tries
- 1.Sf3?
- threat
- 2.Qxf6#
- 1...Rxf8
- 2.Sd4#
- 1...Rf7
- 2.Sfh4#
- 2.Sgh4#
- 1...Rd4
- 2.Sxd4#
- 1...Bf7
- 2.Se7#
- 2.Rxf6#
- 1...Sd5
- 2.Sd4#
- 1...Sf7
- 2.Se7#
- 1...exf3!
- threat
- 1.Sc4?
- threat
- 2.Sxe3#
- 2.Qxf6#
- 1...Rxf8
- 2.Sxe3#
- 2.Sd6#
- 1...Bxc4
- 2.Rxf6#
- 2.Qxf6#
- 1...Bxg8
- 2.Rxf6#
- 2.Qxf6#
- 1...Rg7
- 2.Sh4#
- 2.Qxf6#
- 1...Sf3
- 2.Qxf6#
- 1...Sf7
- 2.Se7#
- 1...Rf7
- 2.Sxe3#
- 2.Sh4#
- 1...Rd3
- 2.Qxf6#
- 1...Rd4
- 2.Sxe3#
- 1...Bf7
- 2.Sxe3#
- 2.Se7#
- 2.Rxf6#
- 1...Sc2
- 2.Qxf6#
- 1...e2
- 2.Se3#
- 2.Qxf6#
- 1...Sd5!
- threat
- 1.Sg4?
- threat
- 2.Sxe3#
- 2.Qxf6#
- 1...Rxf8
- 2.Sxe3#
- 1...Bxg8
- 2.Rxf6#
- 2.Qxf6#
- 1...Rg7
- 2.Sh4#
- 2.Qxf6#
- 1...Sf3
- 2.Qxf6#
- 1...Sf7
- 2.Se7#
- 1...Rf7
- 2.Sxe3#
- 2.Sh6#
- 2.Sh4#
- 1...Rd3
- 2.Qxf6#
- 1...Bf7
- 2.Sxe3#
- 2.Se7#
- 2.Rxf6#
- 1...Sc2
- 2.Qxf6#
- 1...e2
- 2.Se3#
- 2.Qxf6#
- 1...Sd5!
- threat
- 1.Qh6?
- threat
- 2.Sh4#
- 1...Rxh6
- 2.Se7#
- 1...Sf3
- 2.Qf4#
- 1...Rd4!
- threat
- 1.Sf3?
- Keys
- 1.Sc6!
- threat
- 2.Qxf6#
- 1...Rxf8
- 2.Sd4#
- 1...Bf7
- 2.Sce7#
- 1...Sf7
- 2.Sge7#
- 1...Sd5
- 2.Sd4#
- 1...Rf7
- 2.Sh4#
- 1...Rd4
- 2.Sxd4#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(i);N_GUARD::S(E)
- R(i);N_GUARD,N_SPINP(h)::S(E)
- B(g);N_SPINP(h),S_CUTR(i)::S(E)
- S(f);N_SPINP(h),S_CUTR(i)::S(E)
- Tries
- Try
- S(C);
- Threat
- QAR1(F),XP(h)
- Vars
- R(j);N_GUARD,N_SPINP(h),XQ(F)::S(C)
- R(j);N_GUARD::S(C),XR(j)
- S(c);S_CUTR(j)::S(C)
- S(f);N_SPINP(h),S_CUTR(i)::S(E)
- Refutation
- P(d);XS(C)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- S(f);::QAR1(F),XP(h)
- S(f);N_SPINP(h),S_CUTR(i)::S(E)
- R(j);::QAR1(F),XP(h)
- R(j);::S(C),XP(a)
- S(c);::QAR1(F),XP(h)
- Refutation
- S(c);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(j);N_SPINP(h),XQ(F)::S(C),XP(a)
- S(f);::QAR1(F),XP(h)
- S(f);N_SPINP(h),S_CUTR(i)::S(E)
- R(j);::QAR1(F),XP(h)
- S(c);::QAR1(F),XP(h)
- Refutation
- S(c);
- Try
- Q(F);N_PINP(h)
- Threat
- S(E)
- Vars
- R(i);N_GUARD,XQ(F)::S(E)
- S(f);OGATE::QAR1(F)
- Refutation
- R(j);
- Try
- Actual
- S(C);
- Threat
- QAR1(F),XP(h)
- Vars
- R(j);N_GUARD,N_SPINP(h),XQ(F)::S(C)
- B(g);N_SPINP(h),S_CUTR(i)::S(C)
- S(f);N_SPINP(h),S_CUTR(i)::S(E)
- S(c);S_CUTR(j)::S(C)
- R(i);N_GUARD,N_SPINP(h)::S(E)
- R(j);N_GUARD::S(C),XR(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).