MESON Chess Problem Database
Problem Display
PID: 227052 (2N5/3n2qb/2R2p2/1P1k1r1n/rp2R3/1p4bQ/NB3p2/1B3K2 w - - 0 1)
Kupper, Josef
4th HM., FIDE Ty., 1961-1962
#2
9 + 12
| 15257 | Kunstwerke auf 64 Feldern (1922-1966) (Ott, Kummer, Schudel) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Qh6
- 2.Se7#
- 1...Qh8
- 2.Se7#
- 1...Qg4
- 2.Se7#
- 1...Qg5
- 2.Se7#
- 1...Qg6
- 2.Se7#
- 1...Qe7
- 2.Sxe7#
- 1...Qg8
- 2.Se7#
- 1...Ra3
- 2.Sxb4#
- 1...Ra5
- 2.Sxb4#
- 1...Ra6
- 2.Sxb4#
- 1...Ra7
- 2.Sxb4#
- 1...Ra8
- 2.Sxb4#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Re5
- 2.Rd4#
- 1...Rg5
- 2.Qe6#
- 1...Bh2
- 2.Qxb3#
- 2.Qd3#
- 1...Bf4
- 2.Qxb3#
- 2.Qd3#
- 1...Bh4
- 2.Qxb3#
- 2.Qd3#
- 1...Be5
- 2.Qxb3#
- 1...Bd6
- 2.Qxb3#
- 2.Qd3#
- 1...Bc7
- 2.Qxb3#
- 2.Qd3#
- 1...Bb8
- 2.Qxb3#
- 2.Qd3#
- 1...Sc5
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 2.Rd4#
- 1...Sb6
- 2.Sxb6#
- 1...Sb8
- 2.Sb6#
- 1...Sf8
- 2.Sb6#
- 1...Qh6
- Tries
- 1.Re2?
- threat
- 2.Be4#
- 2.Rd2#
- 1...Sc5
- 2.Sb6#
- 1...Qh6
- 2.Se7#
- 2.Be4#
- 1...Qg4
- 2.Se7#
- 1...Qg5
- 2.Se7#
- 2.Be4#
- 1...Qe7
- 2.Sxe7#
- 2.Rd2#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Rg5
- 2.Qe6#
- 1...Bf4
- 2.Be4#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 1...Be5
- 2.Be4#
- 2.Qxb3#
- 1...Bd6
- 2.Qxb3#
- 2.Qd3#
- 1...Sf4
- 2.Be4#
- 1...Se5
- 2.Sb6#
- 2.Be4#
- 1...Re5!
- threat
- 1.Rec4?
- threat
- 2.Be4#
- 1...Sc5
- 2.Sb6#
- 2.R4xc5#
- 1...Qg4
- 2.Se7#
- 1...Qe7
- 2.Sxe7#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Re5
- 2.Rd4#
- 1...Rg5
- 2.Qe6#
- 1...Bd6!
- threat
- 1.Rf4?
- threat
- 2.Be4#
- 2.Qg2#
- 2.Qh1#
- 1...Rxf4
- 2.Qe6#
- 1...Bxf4
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 1...Qg4
- 2.Se7#
- 2.Be4#
- 1...Qe7
- 2.Sxe7#
- 1...Re5
- 2.Rd4#
- 1...Rg5
- 2.Qe6#
- 1...Bh2
- 2.Be4#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 1...Bh4
- 2.Be4#
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 1...Sc5
- 2.Sb6#
- 2.Rd6#
- 1...Se5
- 2.Sb6#
- 2.Be4#
- 2.Rd4#
- 1...Sxf4!
- threat
- 1.Rh4?
- threat
- 2.Be4#
- 1...Bxh4
- 2.Qxb3#
- 2.Qd3#
- 1...Bd6
- 2.Qxb3#
- 1...Qg4
- 2.Se7#
- 1...Qe7
- 2.Sxe7#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Re5
- 2.Rd4#
- 1...Rg5
- 2.Qe6#
- 1...Bf4
- 2.Qxb3#
- 2.Qd3#
- 2.Qf3#
- 1...Sc5
- 2.Sb6#
- 1...Sf4!
- threat
- 1.Re7?
- threat
- 2.Be4#
- 1...Qxe7
- 2.Sxe7#
- 1...Sc5
- 2.Sb6#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 2.Qxd7#
- 1...Re5
- 2.Qxd7#
- 1...Rg5
- 2.Qe6#
- 1...Be5
- 2.Qxb3#
- 1...Se5
- 2.Sb6#
- 1...Qg4!
- threat
- 1.Re8?
- threat
- 2.Be4#
- 1...Sc5
- 2.Sb6#
- 1...Qg4
- 2.Se7#
- 1...Qe7
- 2.Sxe7#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Rg5
- 2.Qe6#
- 1...Be5
- 2.Qxb3#
- 1...Se5
- 2.Sb6#
- 1...Re5!
- threat
- 1.Qg2?
- threat
- 2.Rf4#
- 2.Re5#
- 1...Re5
- 2.Rd4#
- 2.Rxe5#
- 1...Qg4
- 2.Se7#
- 2.Re5#
- 1...Qe7
- 2.Sxe7#
- 2.Re5#
- 1...Rf4
- 2.Re5#
- 1...Rg5
- 2.Re5#
- 1...Bh2
- 2.Re5#
- 1...Bf4
- 2.Re5#
- 1...Bh4
- 2.Re5#
- 1...Be5
- 2.Rd4#
- 2.Rxe5#
- 1...Bd6
- 2.Re5#
- 1...Bc7
- 2.Re5#
- 1...Bb8
- 2.Re5#
- 1...Sf4
- 2.Rxf4#
- 2.Re5#
- 1...Sc5
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 2.Rd4#
- 2.Rxe5#
- 1...Rf3!
- threat
- 1.Qxf5+?
- 1...Be5
- 2.Rd4#
- 2.Qe6#
- 1...Se5
- 2.Sb6#
- 2.Rd4#
- 2.Qe6#
- 1...Bxf5!
- 1...Be5
- 1.Qh1?
- threat
- 2.Rf4#
- 2.Re5#
- 1...Re5
- 2.Rd4#
- 2.Rxe5#
- 1...Qg4
- 2.Se7#
- 2.Re5#
- 1...Qe7
- 2.Sxe7#
- 2.Re5#
- 1...Rf4
- 2.Re5#
- 1...Rg5
- 2.Re5#
- 1...Bh2
- 2.Re5#
- 1...Bf4
- 2.Re5#
- 1...Bh4
- 2.Re5#
- 1...Be5
- 2.Rd4#
- 2.Rxe5#
- 1...Bd6
- 2.Re5#
- 1...Bc7
- 2.Re5#
- 1...Bb8
- 2.Re5#
- 1...Sf4
- 2.Rxf4#
- 2.Re5#
- 1...Sc5
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 2.Rd4#
- 2.Rxe5#
- 1...Rf3!
- threat
- 1.Qxg3?
- threat
- 2.Rd4#
- 2.Qd6#
- 2.Qxb3#
- 2.Qd3#
- 1...Qxg3
- 2.Se7#
- 1...bxa2
- 2.Rd4#
- 2.Qd6#
- 2.Qb3#
- 2.Qd3#
- 1...Rf3
- 2.Rd4#
- 2.Qd6#
- 1...Qf8
- 2.Rd4#
- 2.Qxb3#
- 2.Qd3#
- 1...Qg4
- 2.Se7#
- 2.Qd6#
- 2.Qxb3#
- 2.Qd3#
- 1...Qe7
- 2.Sxe7#
- 2.Rd4#
- 2.Qxb3#
- 2.Qd3#
- 1...Ra3
- 2.Sxb4#
- 2.Rd4#
- 2.Qd6#
- 2.Qd3#
- 1...Rf4
- 2.Qxb3#
- 2.Qd3#
- 1...Re5
- 2.Rd4#
- 2.Qxb3#
- 2.Qd3#
- 1...Sf4
- 2.Qxb3#
- 1...Sc5
- 2.Sb6#
- 2.Rd4#
- 2.Rd6#
- 2.Qd6#
- 1...Se5
- 2.Sb6#
- 2.Rd4#
- 1...Sb6
- 2.Sxb6#
- 2.Rd4#
- 2.Qd6#
- 2.Qd3#
- 1...Sxg3+!
- threat
- 1.Re2?
- Keys
- 1.Rxb4!
- threat
- 2.Be4#
- 1...Rxb4
- 2.Sxb4#
- 1...Bd6
- 2.Qxb3#
- 1...Qg4
- 2.Se7#
- 1...Qe7
- 2.Sxe7#
- 1...Rf3
- 2.Qe6#
- 1...Rf4
- 2.Qe6#
- 1...Re5
- 2.Sc3#
- 1...Rg5
- 2.Qe6#
- 1...Sc5
- 2.Sb6#
- threat
- 1.Rxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(k);N_GUARD::S(I)
- Q(k);N_GUARD::S(I),XQ(k)
- R(d);N_GUARD::S(C),XP(e)
- R(g);OGATE::QAB1(E)
- R(g);SBLOCK::R1(F)
- B(c);OGATE::QAB(E),XP(b)
- S(j);N_GUARD::S(I)
- S(j);N_GUARD::S(I),XS(j)
- Tries
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- S(j);N_GUARD::S(I)
- Q(k);N_GUARD::S(I)
- R(g);OGATE::QAB1(E)
- S(h);::B(A)
- Refutation
- R(g);
- Try
- R(F);
- Threat
- B(A)
- Vars
- Q(k);N_GUARD::S(I)
- Q(k);N_GUARD::S(I),XQ(k)
- R(g);OGATE::QAB1(E)
- R(g);SBLOCK::R1(F)
- Refutation
- B(c);
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- R(g);OGATE,XR(F)::QAB1(E)
- Q(k);N_GUARD::S(I),XQ(k)
- R(g);SBLOCK::R1(F)
- R(g);OGATE::QAB1(E)
- Refutation
- S(h);XR(F)
- Try
- R(F);
- Threat
- B(A)
- Vars
- B(c);OGATE::QAB(E),XP(b)
- Q(k);N_GUARD::S(I)
- Q(k);N_GUARD::S(I),XQ(k)
- R(g);OGATE::QAB1(E)
- R(g);SBLOCK::R1(F)
- S(j);N_GUARD::S(I)
- Refutation
- S(h);
- Try
- R(F);
- Threat
- B(A)
- Vars
- Q(k);XR(F)::S(I),XQ(k)
- S(j);N_GUARD::S(I)
- R(g);OGATE::QAB1(E)
- R(g);OGATE::QAR2(E),XS(j)
- B(c);OGATE::QAB(E),XP(b)
- Refutation
- Q(k);
- Try
- R(F);
- Threat
- B(A)
- Vars
- S(j);N_GUARD::S(I)
- Q(k);N_GUARD::S(I)
- Q(k);N_GUARD::S(I),XQ(k)
- R(g);OGATE::QAB1(E)
- B(c);OGATE::QAB(E),XP(b)
- Refutation
- R(g);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB(E)+R(F),DCHECK
- B(c);::QAB(E)+R(F),DCHECK
- S(j);N_GUARD::S(I)
- Refutation
- R(g);
- Try
- Q(E);CHECK,XR(g)
- Refutation
- B(l);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB(E)+R(F),DCHECK
- B(c);::QAB(E)+R(F),DCHECK
- S(j);N_GUARD::S(I)
- Refutation
- R(g);
- Try
- Q(E);XB(c)
- Threat
- DUALS(4)
- Vars
- Q(k);N_GUARD,XQ(E)::S(I)
- S(h);::QAB(E),XP(b)
- Refutation
- S(h);CHECK,XQ(E)
- Try
- Actual
- R(F);XP(e)
- Threat
- B(A)
- Vars
- R(d);XR(F)::S(C),XR(d)
- B(c);OGATE::QAB(E),XP(b)
- Q(k);N_GUARD::S(I)
- Q(k);N_GUARD::S(I),XQ(k)
- R(g);OGATE::QAB1(E)
- R(g);SBLOCK::S(C)
- S(j);N_GUARD::S(I)
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).