MESON Chess Problem Database
Problem Display
PID: 50056 (2R4B/3KP3/3p4/n2k1n2/r2P1p2/5rNQ/N7/1b1R1B2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
4th Prize, Schach, 1992
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxf1
- 2.Sc3#
- 1...Rf2
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Rd3
- 2.Qxf5#
- 1...Ra3
- 2.Sb4#
- 1...Rb4
- 2.Sxb4#
- 1...Rxd4
- 2.Sb4#
- 1...Bxa2
- 2.Qxf5#
- 1...Bd3
- 2.Sc3#
- 1...Se3
- 2.Sc3#
- 2.Qe6#
- 1...Sxg3
- 2.Qe6#
- 1...Sxd4
- 2.Qe6#
- 1...Sh4
- 2.Qe6#
- 1...Sh6
- 2.Qe6#
- 1...Sxe7
- 2.Qe6#
- 1...Rxf1
- Tries
- 1.Bd3?
- threat
- 2.Sc3#
- 2.Qxf5#
- 1...Rxd3
- 2.Qxf5#
- 1...Rxa2
- 2.Qxf5#
- 1...Bxa2
- 2.Be4#
- 2.Qxf5#
- 1...Bxd3
- 2.Sc3#
- 1...Sxg3
- 2.Sc3#
- 2.Qe6#
- 1...Sxd4
- 2.Sc3#
- 1...Sxe7
- 2.Sc3#
- 2.Qe6#
- 1...fxg3
- 2.Sc3#
- 1...Re3
- 2.Sc3#
- 1...Ra3
- 2.Sb4#
- 2.Qxf5#
- 1...Rc4
- 2.Qxf5#
- 1...Sc4
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...Se3
- 2.Sc3#
- 2.Qe6#
- 1...Sh4
- 2.Sc3#
- 2.Qe6#
- 1...Sh6
- 2.Sc3#
- 2.Qe6#
- 1...Sg7!
- threat
- 1.Rd3?
- threat
- 2.Sc3#
- 2.Qxf5#
- 1...Rxd3
- 2.Qxf5#
- 1...Rxa2
- 2.Qxf5#
- 1...Bxa2
- 2.Qxf5#
- 1...Bxd3
- 2.Sc3#
- 1...Sxg3
- 2.Sc3#
- 2.Qe6#
- 1...Sxd4
- 2.Sc3#
- 2.Qf5#
- 2.Qe6#
- 2.Qh5#
- 1...Sxe7
- 2.Sc3#
- 2.Qe6#
- 1...fxg3
- 2.Sc3#
- 1...Re3
- 2.Sc3#
- 1...Ra3
- 2.Sb4#
- 2.Qxf5#
- 1...Rc4
- 2.Qxf5#
- 1...Sc4
- 2.Sc3#
- 1...Se3
- 2.Sc3#
- 2.Qe6#
- 1...Sh4
- 2.Sc3#
- 2.Qe6#
- 1...Sh6
- 2.Sc3#
- 2.Qe6#
- 1...Sg7
- 2.Sc3#
- 1...Sc6!
- threat
- 1.Bd3?
- Keys
- 1.e8S!
- threat
- 2.Sf6#
- 2.Sc7#
- 1...Rxf1
- 2.Sc3#
- 2.Sf6#
- 1...Rxg3
- 2.Sf6#
- 1...Rxd4
- 2.Sb4#
- 1...Sxg3
- 2.Sf6#
- 2.Qe6#
- 1...Sxd4
- 2.Qe6#
- 1...fxg3
- 2.Sf6#
- 1...Rc4
- 2.Sf6#
- 1...Rc3
- 2.Sxc3#
- 2.Sf6#
- 1...Rd3
- 2.Qxf5#
- 1...Bd3
- 2.Sc3#
- threat
- 1.e8S!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- R(b);N_GUARD,XB(B)::S(C)
- R(b);N_GUARD::S(C)
- R(b);N_GUARD::S(C),XR(b)
- R(b);S_CUTB(a)::QAR2(E),XS(g)
- R(c);N_GUARD::S(C)
- R(c);N_GUARD::S(C),XR(c)
- R(c);N_GUARD,P_SPINR(c),XP(F)::S(C)
- B(a);N_GUARD,XS(C)::QAR2(E),XS(g)
- B(a);S_CUTR(b)::S(C)
- S(g);OGATE,XS(D)::QAB1(E)
- S(g);OGATE,P_SPINS(g),XP(F)::QAB1(E)
- S(g);OGATE::QAB1(E)
- S(g);OGATE,XP(H)::QAB1(E)
- Tries
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(b);XB(B)::QAR2(E),XS(g)
- R(c);XS(C)::QAR2(E),XS(g)
- B(a);XB(B)::S(C)
- S(g);XP(F)::S(C)
- P(d);XS(D)::S(C)
- R(b);::S(C)
- R(c);::QAR2(E),XS(g)
- S(e);::S(C)
- Refutation
- S(g);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- R(b);XR(A)::QAR2(E),XS(g)
- R(c);XS(C)::QAR2(E),XS(g)
- B(a);XS(C)::QAR2(E),XS(g)
- B(a);XR(A)::S(C)
- P(d);XS(D)::S(C)
- R(b);::S(C)
- R(c);::QAR2(E),XS(g)
- S(e);::S(C)
- S(g);::S(C)
- Refutation
- S(e);
- Try
- Actual
- P(H);
- Threat
- DUALS(2)
- Vars
- R(b);XS(D)::S(H)
- R(c);N_GUARD,P_SPINR(c),XP(F)::S(C)
- S(g);OGATE,P_SPINS(g),XP(F)::QAB1(E)
- P(d);XS(D)::S(H)
- R(c);::S(H)
- R(b);S_CUTB(a)::QAR2(E),XS(g)
- B(a);S_CUTR(b)::S(C)
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).