MESON Chess Problem Database
Problem Display
PID: 249907 (8/1bbrq3/4r3/1p4BB/3Q4/1NpRppp1/2Ppk3/5RKN w - - 0 1)
Fleck, Ferenc
Deutsche Schachzeitung, 1974
#2
9 + 12
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Bxf3#
- 1...Re5
- 2.Sxg3#
- 1...Rc6
- 2.Bxf3#
- 1...Red6
- 2.Sxg3#
- 1...Rxd4
- 2.Sxd4#
- 1...Rd5
- 2.Bxf3#
- 1...Rdd6
- 2.Sxg3#
- 1...Be4
- 2.Rxe3#
- 2.Qxe3#
- 1...Ba6
- 2.Bxf3#
- 1...Bc8
- 2.Bxf3#
- 1...Ba5
- 2.Sxg3#
- 1...Be5
- 2.Rxe3#
- 2.Qxe3#
- 1...Bb6
- 2.Sxg3#
- 1...Bd8
- 2.Sxg3#
- 1...d1S
- 2.Sc1#
- 1...d1B
- 2.Sc1#
- 1...Re4
- Tries
- 1.Qe5?
- threat
- 2.Sxg3#
- 2.Rxe3#
- 1...Rxe5
- 2.Sxg3#
- 1...Rxd3
- 2.Sxg3#
- 1...Bxe5
- 2.Rxe3#
- 1...d1S
- 2.Sxg3#
- 2.Sc1#
- 1...Qc5
- 2.Sxg3#
- 1...Bb6
- 2.Sxg3#
- 1...g2
- 2.Sg3#
- 2.Rxe3#
- 1...Qxg5!
- threat
- 1.Qc4?
- threat
- 2.Rxd2#
- 2.Rxe3#
- 1...Qxg5
- 2.Rxd2#
- 1...Rxd3
- 2.Sd4#
- 2.Qxd3#
- 1...d1Q
- 2.Rd2#
- 2.Rxe3#
- 1...d1S
- 2.Sc1#
- 2.Rd2#
- 2.Rxe3#
- 1...d1B
- 2.Sc1#
- 2.Rd2#
- 2.Rxe3#
- 1...d1R
- 2.Rd2#
- 2.Rxe3#
- 1...Bf4
- 2.Rxd2#
- 1...bxc4!
- threat
- 1.Qd5?
- threat
- 2.Sd4#
- 2.Bxf3#
- 1...Rxd5
- 2.Bxf3#
- 1...Bxd5
- 2.Sd4#
- 1...Qb4
- 2.Bxf3#
- 1...Qc5
- 2.Bxf3#
- 1...Qf8
- 2.Sd4#
- 1...Qf7
- 2.Sd4#
- 1...Qg7
- 2.Bxf3#
- 1...Re4
- 2.Bxf3#
- 1...Rf6
- 2.Sd4#
- 1...Be5
- 2.Bxf3#
- 2.Rxe3#
- 1...Bb6
- 2.Sxg3#
- 2.Bxf3#
- 1...Qf6!
- threat
- 1.Qd6?
- threat
- 2.Sxg3#
- 2.Sd4#
- 1...Qxg5
- 2.Sd4#
- 1...Rexd6
- 2.Sxg3#
- 1...Rdxd6
- 2.Sxg3#
- 1...Bxd6
- 2.Sd4#
- 1...Qf6
- 2.Sxg3#
- 1...Qg7
- 2.Sxg3#
- 1...Re4
- 2.Sxg3#
- 2.Bxf3#
- 1...Bb6
- 2.Sxg3#
- 1...g2
- 2.Sg3#
- 2.Sd4#
- 1...Qxd6!
- threat
- 1.Qe5?
- Keys
- 1.Qe4!
- threat
- 2.Bxf3#
- 2.Rxe3#
- 1...Qxg5
- 2.Bxf3#
- 1...Rxe4
- 2.Bxf3#
- 1...Rxd3
- 2.Bxf3#
- 2.Qxd3#
- 1...Bxe4
- 2.Rxe3#
- 1...d1S
- 2.Sc1#
- 2.Bxf3#
- 1...Qc5
- 2.Bxf3#
- 1...Qf6
- 2.Rxe3#
- 1...Qf8
- 2.Rxe3#
- 1...Qf7
- 2.Rxe3#
- 1...Rf6
- 2.Rxe3#
- 1...Bf4
- 2.Bxf3#
- 1...Bb6
- 2.Sxg3#
- 2.Bxf3#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 13
- Sets
- R(h);S_CUTB(i)::B(I),XP(e)
- R(h);S_CUTB(j)::S(C),XP(f)
- R(k);XQ(G)::S(E),XR(k)
- R(k);S_CUTB(i)::B(I),XP(e)
- R(k);S_CUTB(j)::S(C),XP(f)
- B(i);N_GUARD::B(I),XP(e)
- B(j);N_GUARD::S(C),XP(f)
- P(a);N_GUARD::S(E)
- Tries
- Try
- Q(G);N_PINP(e),P_PINP(d)
- Threat
- DUALS(2)
- Vars
- R(h);N_SPINP(d),P_SPINP(e),XQ(G)::S(C),XP(f)
- R(k);XR(F)::S(C),XP(f)
- B(j);N_SPINP(d),P_SPINP(e),XQ(G)::R1(F),XP(d)
- Q(l);::S(C),XP(f)
- B(j);::S(C),XP(f)
- Refutation
- Q(l);XB(H)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(l);XB(H)::QAB(G)+R(F),DCHECK,XP(a)
- B(j);::QAB(G)+R(F),DCHECK,XP(a)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(k);XQ(G)::B(I),XP(e)
- B(i);XQ(G)::S(E)
- Q(l);::B(I),XP(e)
- Q(l);::S(E)
- R(h);::B(I),XP(e)
- R(h);::S(E)
- Refutation
- Q(l);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(l);XB(H)::S(E)
- R(h);XQ(G)::S(C),XP(f)
- R(k);XQ(G)::S(C),XP(f)
- B(j);XQ(G)::S(E)
- Q(l);::S(C),XP(f)
- B(j);::S(C),XP(f)
- Refutation
- Q(l);XQ(G)
- Try
- Actual
- Q(G);N_PINP(e),P_PINP(d)
- Threat
- DUALS(2)
- Vars
- Q(l);XB(H)::B(I),XP(e)
- R(h);N_SPINP(d),P_SPINP(e),XQ(G)::B(I),XP(e)
- B(i);N_SPINP(d),P_SPINP(e),XQ(G)::R1(F),XP(d)
- Q(l);::B(I),XP(e)
- Q(l);::R1(F),XP(d)
- R(h);::R1(F),XP(d)
- B(j);::B(I),XP(e)
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).