MESON Chess Problem Database
Problem Display
PID: 233441 (rB2B3/1p6/1QR1P3/5pn1/p1KNk2q/1PP1p3/N5P1/b3rR2 w - - 0 1)
Lackner, Detlef
Freie Presse, 1996
#2
12 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Rf4#
- 1...Qh3
- 2.Rf4#
- 1...Qf4
- 2.Rxf4#
- 1...Qh5
- 2.Rf4#
- 1...Qh6
- 2.Rf4#
- 1...Qh7
- 2.Rf4#
- 1...Qh8
- 2.Rf4#
- 1...Bxc3
- 2.Sxc3#
- 1...Sf3
- 2.gxf3#
- 1...Sxe6
- 2.Rxe6#
- 1...f4
- 2.Bg6#
- 1...bxc6
- 2.Bxc6#
- 2.Qxc6#
- 1...Qh1
- Tries
- 1.Se2?
- threat
- 2.Qd4#
- 1...Bxc3
- 2.Saxc3#
- 2.Sexc3#
- 1...Sxe6
- 2.Rxe6#
- 1...f4
- 2.Bg6#
- 1...Qh8
- 2.Sg3#
- 2.Rf4#
- 1...Sf3
- 2.gxf3#
- 1...Rd1!
- threat
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Bxc3
- 2.Sxc3#
- 1...Sxf3
- 2.gxf3#
- 1...Sxe6
- 2.Rxe6#
- 1...f4
- 2.Bg6#
- 1...Qh8
- 2.Sxg5#
- 1...Rd1!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Bxc3
- 2.Saxc3#
- 2.Sbxc3#
- 1...Sxe6
- 2.Rxe6#
- 1...f4
- 2.Bg6#
- 1...Qh8
- 2.Rf4#
- 1...Sf3
- 2.gxf3#
- 1...Rd1!
- threat
- 1.Rc5?
- threat
- 2.Re5#
- 2.Qxb7#
- 1...Rxf1
- 2.Qxb7#
- 1...e2
- 2.Re5#
- 1...Qf2
- 2.Qxb7#
- 1...Qg3
- 2.Qxb7#
- 1...Qh2
- 2.Qxb7#
- 1...Qf4
- 2.Rxf4#
- 2.Qxb7#
- 1...Qh7
- 2.Rf4#
- 2.Re5#
- 1...Qh8
- 2.Rf4#
- 2.Qxb7#
- 1...Ra5
- 2.Qxb7#
- 1...Ra6
- 2.Re5#
- 1...Ra7
- 2.Re5#
- 1...Sf3
- 2.Qxb7#
- 2.gxf3#
- 1...Sf7
- 2.Qxb7#
- 1...Rxb8!
- threat
- 1.Qb5?
- threat
- 2.Qd5#
- 2.Qe5#
- 2.Qxf5#
- 1...Rxf1
- 2.Qd5#
- 2.Qe5#
- 1...Rxb8
- 2.Qd5#
- 2.Qxf5#
- 1...bxc6
- 2.Bxc6#
- 2.Qxc6#
- 2.Qe5#
- 2.Qxf5#
- 1...e2
- 2.Qe5#
- 1...Qf2
- 2.Qd5#
- 2.Qe5#
- 1...Qg3
- 2.Qd5#
- 2.Qxf5#
- 1...Qh2
- 2.Qd5#
- 2.Qxf5#
- 1...Qh3
- 2.Rf4#
- 2.Qd5#
- 2.Qe5#
- 1...Qf4
- 2.Rxf4#
- 2.Qd5#
- 1...Qg4
- 2.Qd5#
- 2.Qe5#
- 1...Qh7
- 2.Rf4#
- 2.Qd5#
- 2.Qe5#
- 1...Qh8
- 2.Rf4#
- 2.Qd5#
- 2.Qxf5#
- 1...Sf3
- 2.Qd5#
- 2.Qxf5#
- 2.gxf3#
- 1...Sf7
- 2.Qd5#
- 2.Qxf5#
- 1...f4
- 2.Bg6#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...Ra5!
- threat
- 1.Se2?
- Keys
- 1.Sc2!
- threat
- 2.Qd4#
- 1...Bxc3
- 2.Sxc3#
- 1...Sxe6
- 2.Rxe6#
- 1...f4
- 2.Bg6#
- 1...Qh8
- 2.Rf4#
- 1...Rd1
- 2.Qxe3#
- 1...Sf3
- 2.gxf3#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(f);N_GUARD::R1(A)
- Q(f);N_GUARD::R1(A),XQ(f)
- B(a);XP(E)::S(B),XB(a)
- S(h);OGATE::P(C),XS(h)
- S(h);OGATE,XP(J)::R(I),XS(h)
- P(g);OGATEB::B(L)
- Tries
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- S(h);OGATE,XP(J)::R(I),XS(h)
- P(g);OGATEB::B(L)
- S(h);OGATE::P(C),XS(h)
- Refutation
- R(b);
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- B(a);XP(E)::S(B),XB(a)
- S(h);OGATE,XS(G)::P(C),XS(h)
- S(h);OGATE,XP(J)::R(I),XS(h)
- P(g);OGATEB::B(L)
- Q(f);N_GUARD::S(G),XS(h)
- Refutation
- R(b);
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- S(h);OGATE,XP(J)::R(I),XS(h)
- P(g);OGATEB::B(L)
- Q(f);N_GUARD::R1(A)
- S(h);OGATE::P(C),XS(h)
- Refutation
- R(b);
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(b);XR(A)::QAB(H),XP(i)
- P(c);::R1(I)
- Q(f);::QAB(H),XP(i)
- R(j);::QAB(H),XP(i)
- R(j);::R1(I)
- S(h);::QAB(H),XP(i)
- Refutation
- R(j);XB(K)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- P(c);::QAR1(H)
- Refutation
- R(j);
- Try
- Actual
- S(G);
- Threat
- QAR1(H)
- Vars
- B(a);XP(E)::S(B),XB(a)
- S(h);OGATE,XP(J)::R(I),XS(h)
- P(g);OGATEB::B(L)
- Q(f);N_GUARD::R1(A)
- R(b);N_GUARD::QAR1(H),XP(c)
- S(h);OGATE::P(C),XS(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).