MESON Chess Problem Database
Problem Display
PID: 260775 (8/b1B5/7R/5k1K/2N1rp2/5Q2/5n2/8 w - - 0 1)
Kupper, Josef
Neue Zurcher Zeitung, 1972
#2
5 + 5
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Rxc4
- 2.Qd5#
- 1...Rd4
- 2.Se3#
- 1...Re5
- 2.Sd6#
- 1...Re6
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Sd1
- 2.Qg4#
- 2.Qh3#
- 1...Sh1
- 2.Qg4#
- 2.Qh3#
- 1...Sd3
- 2.Qg4#
- 2.Qh3#
- 1...Sh3
- 2.Qg4#
- 2.Qxh3#
- 1...Sg4
- 2.Qxg4#
- 1...Re1
- Tries
- 1.Se3+?
- 1...Rxe3
- 2.Qxf4#
- 1...Bxe3!
- 1...Rxe3
- 1.Be5?
- threat
- 2.Rf6#
- 1...Rxe5
- 2.Sd6#
- 1...Sg4
- 2.Qxg4#
- 1...Rxc4!
- threat
- 1.Qg2?
- threat
- 2.Qg5#
- 2.Qg6#
- 1...Rxc4
- 2.Qd5#
- 2.Qg6#
- 1...Rd4
- 2.Qg6#
- 1...Re1
- 2.Qg6#
- 1...Re2
- 2.Qg6#
- 1...Re3
- 2.Qg6#
- 1...Re5
- 2.Sd6#
- 2.Qg6#
- 1...Re7
- 2.Qg6#
- 1...Re8
- 2.Qg6#
- 1...Sh3
- 2.Qxh3#
- 2.Qg4#
- 2.Qg6#
- 1...Sg4
- 2.Qxg4#
- 1...Re6!
- threat
- 1.Qg3?
- threat
- 2.Qg5#
- 2.Qg6#
- 1...Rxc4
- 2.Qg6#
- 1...Re1
- 2.Qxf4#
- 2.Qg6#
- 1...Re2
- 2.Qxf4#
- 2.Qg6#
- 1...Re3
- 2.Qxf4#
- 2.Qg6#
- 1...Rd4
- 2.Qg6#
- 1...Re5
- 2.Sd6#
- 2.Qg6#
- 1...Re6
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 2.Qg6#
- 1...Re8
- 2.Qxf4#
- 2.Qg6#
- 1...Sh3
- 2.Qxh3#
- 2.Qg4#
- 2.Qg6#
- 1...Sg4
- 2.Qxg4#
- 1...fxg3!
- threat
- 1.Qh3+?
- 1...Sg4
- 2.Qxg4#
- 1...Sxh3!
- 1...Sg4
- 1.Se3+?
- Keys
- 1.Kh4!
- threat
- 2.Qh5#
- 1...Rxc4
- 2.Qd5#
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Rd4
- 2.Se3#
- 1...Re5
- 2.Sd6#
- 1...Re6
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Sh3
- 2.Qg4#
- 2.Qxh3#
- 1...Sg4
- 2.Qxg4#
- threat
- 1.Kh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAR1(A),XP(c)
- R(b);OGATE,XS(B)::QAR2(A)
- R(b);N_GUARD,S_CUTB(e)::S(B)
- R(b);SBLOCK::S(B)
- S(a);N_GUARD::QAB1(A),XS(a)
- Tries
- Try
- S(B);CHECK
- Vars
- R(b);XS(B)::QAR1(A),XP(c)
- Refutation
- B(e);XS(B)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- R(b);SBLOCK,XB(E)::S(B)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);XS(B)
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- R(b);::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- R(b);XS(B)::QAB1(A)
- R(b);::QAB1(A)
- R(b);N_GUARD::QAR1(A),XP(c)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);CHECK,N_PINP(c)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- K(C);P-FLIGHT
- Threat
- QAR2(A)
- Vars
- R(b);OGATE,XS(B)::QAR2(A)
- R(b);N_GUARD::QAR1(A),XP(c)
- R(b);N_GUARD,S_CUTB(e)::S(B)
- R(b);SBLOCK::S(B)
- S(a);N_GUARD::QAB1(A),XS(a)
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).