MESON Chess Problem Database
Problem Display
PID: 102199 (8/2N1Q3/4P3/3nrn2/2P1k1B1/4P1P1/3K4/B7 w - - 0 1)
Zidek, Alexander
Dagbladet, 1989
#2
9 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe6
- 2.Qxe6#
- 1...Rxe6
- Tries
- 1.Sb5?
- 1...Rxe6
- 2.Qxe6#
- 1...Sdxe7
- 2.Sc3#
- 1...Sfxe3
- 2.Sd6#
- 1...Sxg3
- 2.Sd6#
- 1...Sfxe7
- 2.Sd6#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sf4
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Sd4
- 2.Sd6#
- 1...Sh4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sh6
- 2.Sd6#
- 1...Sg7
- 2.Sd6#
- 1...Sdxe3!
- 1...Rxe6
- 1.Sxd5?
- threat
- 2.Sc3#
- 2.Sf6#
- 1...Rxe6
- 2.Sf6#
- 2.Qxe6#
- 1...Sxe3
- 2.Sf6#
- 1...Rxd5+!
- threat
- 1.Qc5?
- 1...Rxe6
- 2.Qxd5#
- 1...Sdxe3
- 2.Qxe5#
- 1...Sxc7
- 2.Qxe5#
- 1...Sfxe3
- 2.Qd4#
- 1...Sxg3
- 2.Qd4#
- 1...Sb4
- 2.Qxe5#
- 1...Sf4
- 2.Qxe5#
- 1...Sb6
- 2.Qxe5#
- 1...Sf6
- 2.Qxe5#
- 1...Sde7
- 2.Qxe5#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sh6
- 2.Qd4#
- 1...Sfe7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sc3!
- 1...Rxe6
- 1.Qg5?
- 1...Rxe6
- 2.Qxf5#
- 1...Sdxe3
- 2.Qf4#
- 1...Sxc7
- 2.Qf4#
- 1...Sfxe3
- 2.Qxe5#
- 1...Sxg3
- 2.Qxe5#
- 1...Sc3
- 2.Qf4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb6
- 2.Qf4#
- 1...Sf6
- 2.Qf4#
- 1...Sde7
- 2.Qf4#
- 1...Sh4
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...Sfe7
- 2.Qxe5#
- 1...Sg7
- 2.Qxe5#
- 1...Sd4!
- 1...Rxe6
- 1.Sb5?
- Keys
- 1.Se8!
- 1...Rxe6
- 2.Qxe6#
- 1...Sdxe3
- 2.Sf6#
- 1...Sdxe7
- 2.Sf6#
- 1...Sfxe3
- 2.Sd6#
- 1...Sxg3
- 2.Sd6#
- 1...Sfxe7
- 2.Sd6#
- 1...Sc3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sd4
- 2.Sd6#
- 1...Sh4
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sh6
- 2.Sd6#
- 1...Sg7
- 2.Sd6#
- 1...Rxe6
- 1.Se8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 16
- REMOVED MATES = 0
- Sets
- R(c);OGATE,P_SPINR(c),XP(G)::QAR2(I),XR(c)
- Tries
- Try
- S(H);
- Vars
- R(c);OGATE,P_SPINR(c),XP(G)::QAR2(I),XR(c)
- S(b);N_GUARD,XQ(I)::S(H)
- S(d);N_GUARD,XP(C)::S(H)
- S(d);N_GUARD,XP(D)::S(H)
- S(d);N_GUARD,XQ(I)::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(b);N_GUARD::S(H)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- Refutation
- S(b);XP(C)
- Try
- S(H);XS(b)
- Threat
- DUALS(2)
- Vars
- S(d);XP(C)::S(H)
- Refutation
- R(c);CHECK,XS(H)
- Try
- Q(I);
- Vars
- R(c);N_GUARD,XP(G)::QAB1(I),XS(b)
- S(b);OGATE,XP(C)::QAR1(I),XR(c)
- S(b);OGATE,XS(H)::QAR1(I),XR(c)
- S(d);N_GUARD,XP(C)::QAR1(I)
- S(d);N_GUARD,XP(D)::QAR1(I)
- S(b);OGATE::QAR1(I),XR(c)
- S(d);N_GUARD::QAR1(I),XS(d)
- S(d);N_GUARD::QAR1(I)
- Refutation
- S(b);
- Try
- Q(I);
- Vars
- R(c);N_GUARD,XP(G)::QAB1(I),XS(d)
- S(b);N_GUARD,XP(C)::QAR1(I)
- S(b);N_GUARD,XS(H)::QAR1(I)
- S(d);OGATE,XP(C)::QAR1(I),XR(c)
- S(d);OGATE,XP(D)::QAR1(I),XR(c)
- S(b);N_GUARD::QAR1(I)
- S(b);N_GUARD::QAR1(I),XS(b)
- S(d);OGATE::QAR1(I),XR(c)
- Refutation
- S(d);
- Try
- Actual
- S(H);
- Vars
- R(c);OGATE,P_SPINR(c),XP(G)::QAR2(I),XR(c)
- S(b);N_GUARD,XP(C)::S(H)
- S(b);N_GUARD,XQ(I)::S(H)
- S(d);N_GUARD,XP(C)::S(H)
- S(d);N_GUARD,XP(D)::S(H)
- S(d);N_GUARD,XQ(I)::S(H)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
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).