MESON Chess Problem Database
Problem Display
PID: 261377 (r1Q5/r2p2p1/2Nb2R1/5kNP/7R/p2K4/6Pp/8 w - - 0 1)
Kupper, Josef
Neue Zurcher Zeitung, 1992
#2
8 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Qxd7#
- 1...Ra5
- 2.Qxd7#
- 1...Ra6
- 2.Qxd7#
- 1...Bf4
- 2.g4#
- 1...Be5
- 2.Se7#
- 1...Bc7
- 2.Qxd7#
- 1...Bb8
- 2.Qf8#
- 1...Ra4
- Tries
- 1.Sf3?
- threat
- 2.Sfd4#
- 2.Scd4#
- 1...Ra4
- 2.Qxd7#
- 1...Be5
- 2.Se7#
- 1...Bc5!
- threat
- 1.Sh3?
- threat
- 2.g4#
- 1...Ra4
- 2.Qxd7#
- 1...Bg3!
- threat
- 1.Se6?
- threat
- 2.Sed4#
- 2.Sxg7#
- 2.g4#
- 1...dxe6
- 2.Qxe6#
- 1...Ra4
- 2.Sxg7#
- 1...Bg3
- 2.Sed4#
- 2.Sxg7#
- 1...Bc5
- 2.Sxg7#
- 2.Rf4#
- 2.g4#
- 1...Be5
- 2.Se7#
- 2.g4#
- 1...Bf8
- 2.Sed4#
- 2.Rf4#
- 2.g4#
- 1...dxc6!
- threat
- 1.Sf7?
- threat
- 2.Sd4#
- 2.Sxd6#
- 1...Ra4
- 2.Sxd6#
- 2.Qxd7#
- 1...Bg3
- 2.Sd4#
- 2.Se7#
- 1...Bb4
- 2.Sd4#
- 1...Bf4
- 2.Sd4#
- 2.Se7#
- 2.g4#
- 1...Be5
- 2.Se7#
- 1...Bc7
- 2.Sd4#
- 2.Se7#
- 2.Qxd7#
- 1...Be7
- 2.Sd4#
- 2.Sxe7#
- 1...Bb8
- 2.Sd4#
- 2.Se7#
- 1...Bf8
- 2.Sd4#
- 1...Bc5!
- threat
- 1.Se7+?
- 1...Ke5
- 2.Sf3#
- 2.Sf7#
- 2.Re4#
- 2.Qc3#
- 1...Bxe7!
- 1...Ke5
- 1.Re4?
- threat
- 2.Sd4#
- 2.g4#
- 1...Bg3
- 2.Sd4#
- 2.Se7#
- 1...Ra4
- 2.Qxd7#
- 2.g4#
- 1...Bc5
- 2.g4#
- 1...Be5
- 2.Se7#
- 2.g4#
- 1...Bf4!
- threat
- 1.Sf3?
- Keys
- 1.Se4!
- threat
- 2.Sxd6#
- 1...Bg3
- 2.Sxg3#
- 1...Bb4
- 2.Sg3#
- 1...Bf4
- 2.g4#
- 1...Bc5
- 2.Sg3#
- 1...Be5
- 2.Se7#
- 1...Bc7
- 2.Qxd7#
- 1...Be7
- 2.Sg3#
- 1...Bb8
- 2.Qf8#
- 1...Bf8
- 2.Sg3#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- R(e);N_GUARD::QAB(H),XP(f)
- B(d);SBLOCK::P(A)
- B(d);N_GUARD,SBLOCK::S(F)
- B(d);S_CUTR(e)::QAB(H),XP(f)
- B(d);N_GUARD,S_CUTR(h)::QAR(H)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD::QAB(H),XP(f)
- B(d);N_GUARD::S(F)
- Refutation
- B(d);
- Try
- S(D);
- Threat
- P(A)
- Vars
- R(e);N_GUARD::QAB(H),XP(f)
- Refutation
- B(d);
- Try
- S(D);N_PINP(f)
- Threat
- DUALS(3)
- Vars
- P(f);OGATE,P_SPINP(f),XS(D)::QAB1(H),XP(f)
- R(e);::S(D),XP(g)
- Refutation
- P(f);XS(F)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(d);::S(F)
- B(d);N_GUARD::S(F)
- Refutation
- B(d);
- Try
- S(F);CHECK
- Refutation
- B(d);XS(F)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(d);::P(A)
- Refutation
- B(d);
- Try
- Actual
- S(D);
- Threat
- S(D),XB(d)
- Vars
- B(d);N_GUARD::S(D),XB(d)
- B(d);N_GUARD::S(D)
- B(d);SBLOCK::P(A)
- B(d);N_GUARD,SBLOCK::S(F)
- B(d);S_CUTR(e)::QAB(H),XP(f)
- B(d);N_GUARD,S_CUTR(h)::QAR(H)
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).