MESON Chess Problem Database
Problem Display
PID: 243446 (1b3RK1/r2p2PP/1QN5/3k1B2/1p1pN2B/nPPn4/8/8 w - - 0 1)
Bednar, Milan
Hlas l'udu, 1986
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be5
- 2.Se7#
- 1...Bd6
- 2.Sf6#
- 1...Sb1
- 2.c4#
- 1...Sc2
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Sc1
- 2.Qc5#
- 1...Se1
- 2.Qc5#
- 1...Sb2
- 2.Qc5#
- 1...Sf2
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se5
- 2.Sxb4#
- 2.Se7#
- 2.Qc5#
- 1...dxc6
- 2.Qxd4#
- 1...d6
- 2.Sf6#
- 1...Be5
- Tries
- 1.Sxb4+?
- 1...Sxb4
- 2.Qc5#
- 1...Ke5!
- 1...Sxb4
- 1.Sxb8?
- threat
- 2.Qxd4#
- 2.Qd6#
- 1...Ke5
- 2.Qd6#
- 1...bxc3
- 2.Qd6#
- 1...dxc3
- 2.Qd6#
- 1...Ra6
- 2.Qxd4#
- 1...Sc2
- 2.Qd6#
- 1...Sc4
- 2.Qxd4#
- 1...Sc5
- 2.Qxc5#
- 2.Qd6#
- 1...d6
- 2.Qxd4#
- 2.Qxd6#
- 1...Sb5!
- threat
- 1.Be7?
- threat
- 2.Sf6#
- 1...dxc6
- 2.Qxd4#
- 1...Be5!
- threat
- 1.Rf6?
- threat
- 2.Qxd4#
- 1...dxc3
- 2.Qd4#
- 1...Be5
- 2.Se7#
- 1...Bd6
- 2.Rxd6#
- 1...Sc2
- 2.c4#
- 1...Sb5
- 2.c4#
- 1...Sc5
- 2.Qxc5#
- 1...d6!
- threat
- 1.Qb5+?
- 1...Sc5
- 2.Qxc5#
- 1...Sxb5!
- 1...Sc5
- 1.cxd4?
- threat
- 2.Se7#
- 1...d6
- 2.Sf6#
- 1...Bd6
- 2.Sf6#
- 1...Sc5
- 2.Qxc5#
- 1...dxc6!
- threat
- 1.Sxb4+?
- Keys
- 1.Kh8!
- threat
- 2.g8Q#
- 2.g8B#
- 1...bxc3
- 2.g8Q#
- 2.g8B#
- 1...dxc3
- 2.g8Q#
- 2.g8B#
- 1...dxc6
- 2.Qxd4#
- 1...Ra4
- 2.g8Q#
- 2.g8B#
- 1...Ra5
- 2.g8Q#
- 2.g8B#
- 1...Ra6
- 2.g8Q#
- 2.g8B#
- 1...Rb7
- 2.g8Q#
- 2.g8B#
- 1...Rc7
- 2.g8Q#
- 2.g8B#
- 1...Ra8
- 2.g8Q#
- 2.g8B#
- 1...Bh2
- 2.g8Q#
- 2.g8B#
- 1...Bg3
- 2.g8Q#
- 2.g8B#
- 1...Bf4
- 2.g8Q#
- 2.g8B#
- 1...Be5
- 2.Se7#
- 1...Bd6
- 2.Sf6#
- 2.g8Q#
- 2.g8B#
- 1...Bc7
- 2.g8Q#
- 2.g8B#
- 1...Sb1
- 2.c4#
- 2.g8Q#
- 2.g8B#
- 1...Sc2
- 2.c4#
- 2.g8Q#
- 2.g8B#
- 1...Sc4
- 2.g8Q#
- 2.g8B#
- 1...Sb5
- 2.c4#
- 2.g8Q#
- 2.g8B#
- 1...Sc1
- 2.Qc5#
- 2.g8Q#
- 2.g8B#
- 1...Se1
- 2.Qc5#
- 2.g8Q#
- 2.g8B#
- 1...Sb2
- 2.Qc5#
- 2.g8Q#
- 2.g8B#
- 1...Sf2
- 2.Qc5#
- 2.g8Q#
- 2.g8B#
- 1...Sf4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Se5
- 2.Sxb4#
- 2.Se7#
- 2.Qc5#
- 1...d6
- 2.Sf6#
- threat
- 1.Kh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- B(h);SBLOCK::S(G)
- B(h);SBLOCK::S(C)
- S(a);N_GUARD::P(B)
- S(b);N_GUARD::QAR1(F)
- S(b);N_GUARD::QAR1(F),XS(b)
- P(g);SBLOCK,XS(G)::QAR1(F),XP(d)
- P(g);SBLOCK::S(C)
- Tries
- Try
- S(G);CHECK,XP(c)
- Vars
- S(b);XS(G)::QAR1(F)
- Refutation
- K(e);P-FLIGHT
- Try
- S(G);XB(h)
- Threat
- DUALS(2)
- Vars
- K(e);P-FLIGHT::QAB1(F)
- P(c);XP(B)::QAR1(F)
- P(d);XP(B)::QAR1(F)
- R(f);::QAR1(F),XP(d)
- S(a);::QAR1(F)
- S(a);::QAR1(F),XP(d)
- Refutation
- S(a);
- Try
- B(D);
- Threat
- S(C)
- Vars
- P(g);SBLOCK,XS(G)::QAR1(F),XP(d)
- Refutation
- B(h);
- Try
- R(J);
- Threat
- QAR1(F),XP(d)
- Vars
- P(d);XP(B)::QAR1(F)
- B(h);SBLOCK::S(G)
- B(h);N_GUARD::R1(J),XB(h)
- S(a);N_GUARD::P(B)
- S(b);N_GUARD::QAR1(F),XS(b)
- Refutation
- P(g);
- Try
- Q(F);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAR1(F),XS(b)
- Refutation
- S(a);XQ(F)
- Try
- P(B);XP(d)
- Threat
- S(G)
- Vars
- P(g);SBLOCK::S(C)
- B(h);SBLOCK::S(C)
- S(b);N_GUARD::QAR1(F),XS(b)
- Refutation
- P(g);XS(G)
- Try
- Actual
- K(K);P-FLIGHT
- Threat
- P=Q
- Vars
- P(c);XP(B)::P=Q
- P(d);XP(B)::P=Q
- P(g);SBLOCK,XS(G)::QAR1(F),XP(d)
- R(f);::P=Q
- B(h);::P=Q
- B(h);P_PINP(H),SBLOCK::S(G)
- S(a);::P=Q
- S(b);N_GUARD::QAR1(F)
- S(b);N_GUARD::QAR1(F),XS(b)
- P(g);SBLOCK::S(C)
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).