MESON Chess Problem Database
Problem Display
PID: 96978 (2nK2b1/2ppBp2/2p1k3/R4pr1/1p6/1RN2N2/B3n2q/Q1b5 w - - 0 1)
Burda, Josef
Probleemblad, 1984
#2
8 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Re5#
- 1...Qe5
- 2.Rxe5#
- 1...Qh1
- 2.Re5#
- 1...Qf2
- 2.Re5#
- 1...Qg2
- 2.Re5#
- 1...Qh3
- 2.Re5#
- 1...Qh4
- 2.Re5#
- 1...Qh5
- 2.Re5#
- 1...Qh6
- 2.Re5#
- 1...Qh7
- 2.Re5#
- 1...Rg3
- 2.Re5#
- 1...Bb2
- 2.Sxg5#
- 1...Ba3
- 2.Sxg5#
- 1...Sg1
- 2.Sd4#
- 1...Sxc3
- 2.Sd4#
- 1...Sg3
- 2.Sd4#
- 2.Re5#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 2.Sxg5#
- 2.Re5#
- 1...f4
- 2.Sxg5#
- 1...Qg1
- Tries
- 1.Sb1?
- threat
- 2.Re3#
- 2.Qf6#
- 1...c5
- 2.Re3#
- 1...f6
- 2.Re3#
- 2.Qxf6#
- 1...Qe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Qh6
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 1...Qh8
- 2.Re3#
- 1...Rg6
- 2.Re3#
- 1...Bb2
- 2.Sxg5#
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 2.Qf6#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 2.Re3#
- 1...d5
- 2.Qf6#
- 1...Sxe7!
- threat
- 1.Sd1?
- threat
- 2.Re3#
- 2.Qf6#
- 1...c5
- 2.Re3#
- 1...f6
- 2.Re3#
- 2.Qxf6#
- 1...Qe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Qh6
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 1...Qh8
- 2.Re3#
- 1...Rg6
- 2.Re3#
- 1...Bb2
- 2.Sxg5#
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 2.Qf6#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 2.Re3#
- 1...d5
- 2.Qf6#
- 1...Sxe7!
- threat
- 1.Sxe2?
- threat
- 2.Sed4#
- 2.Sfd4#
- 2.Re3#
- 2.Qf6#
- 1...Qxe2
- 2.Sd4#
- 2.Re3#
- 2.Qf6#
- 1...c5
- 2.Re3#
- 1...f6
- 2.Re3#
- 2.Qxf6#
- 1...Qg1
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Qf4
- 2.Re3#
- 2.Qf6#
- 1...Qe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Qd6
- 2.Re3#
- 2.Qf6#
- 1...Qf2
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Qh4
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 2.Qf6#
- 1...Qh6
- 2.Sed4#
- 2.Sfd4#
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 1...Qh8
- 2.Re3#
- 1...Rg4
- 2.Re3#
- 2.Qf6#
- 1...Rg6
- 2.Sed4#
- 2.Sfd4#
- 2.Re3#
- 1...Bb2
- 2.Sxg5#
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 2.Qf6#
- 1...d5
- 2.Sed4#
- 2.Qf6#
- 1...Sxe7!
- threat
- 1.Sa4?
- threat
- 2.Re3#
- 2.Qf6#
- 1...c5
- 2.Re3#
- 1...f6
- 2.Re3#
- 2.Qxf6#
- 1...Qe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Qh6
- 2.Re3#
- 2.Re5#
- 2.Qe5#
- 1...Qh8
- 2.Re3#
- 1...Rg6
- 2.Re3#
- 1...Bb2
- 2.Sxg5#
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 2.Qf6#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 2.Re3#
- 1...d5
- 2.Sc5#
- 2.Qf6#
- 1...Sxe7!
- threat
- 1.Sb1?
- Keys
- 1.Sb5!
- threat
- 2.Re3#
- 1...Kd5
- 2.Rxb4#
- 1...f4
- 2.Sxc7#
- 1...Qe5
- 2.Qxe5#
- 1...Be3
- 2.Rxe3#
- 1...Sc3
- 2.Sbd4#
- 1...d5
- 2.Qf6#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 14
- Sets
- Q(c);N_GUARD::R1(F)
- Q(c);N_GUARD::R1(F),XQ(c)
- R(f);S_CUTQ(c)::R1(F)
- B(a);N_GUARD::S(E),XR(f)
- S(b);N_GUARD::S(E)
- S(b);N_GUARD,XS(D)::S(E)
- S(b);N_GUARD::S(E),XS(b)
- P(e);S_CUTB(a)::S(E),XR(f)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(g);::B(B)+R(C),DCHECK
- Q(c);::B(B)+R(C),DCHECK
- R(f);::B(B)+R(C),DCHECK
- S(b);N_GUARD::S(E)
- P(j);::QAR1(A)
- Refutation
- S(l);XB(G)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(g);::B(B)+R(C),DCHECK
- Q(c);::B(B)+R(C),DCHECK
- R(f);::B(B)+R(C),DCHECK
- S(b);N_GUARD::S(E)
- P(j);::QAR1(A)
- Refutation
- S(l);XB(G)
- Try
- S(D);XS(b)
- Threat
- DUALS(4)
- Vars
- P(g);::B(B)+R(C),DCHECK
- Q(c);::B(B)+R(C),DCHECK
- Refutation
- S(l);XB(G)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(g);::B(B)+R(C),DCHECK
- Q(c);::B(B)+R(C),DCHECK
- R(f);::B(B)+R(C),DCHECK
- S(b);N_GUARD::S(E)
- Refutation
- S(l);XB(G)
- Try
- Actual
- S(D);
- Threat
- B(B)+R(C),DCHECK
- Vars
- K(h);S_FLIGHT::B(B)+R(C),XP(d)
- P(e);S_CUTQ(c)::S(D),XP(i)
- Q(c);N_GUARD::QAR1(A),XQ(c)
- B(a);::B(B)+R(C),DCHECK,XB(a)
- S(b);N_GUARD::S(D)
- P(j);SBLOCK::QAR1(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).