MESON Chess Problem Database
Problem Display
PID: 181287 (1NB1b2K/2Q1b3/8/2nk1p1N/2n2r2/2PP4/2p5/2q1R3 w - - 0 1)
Bukne, Roald
Brussels, 1953
#2
8 + 9
| 78 | Bulletin Ouvrier des Echecs | 1953 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Sxf4#
- 1...Qa3
- 2.Sxf4#
- 1...Qa1
- 2.Sxf4#
- 1...Qb1
- 2.Sxf4#
- 1...Qd1
- 2.Sxf4#
- 1...Qxe1
- 2.Sxf4#
- 1...Bd6
- 2.Sf6#
- 1...Bf6+
- 2.Sxf6#
- 1...Bf8
- 2.Sf6#
- 1...Bxh5
- 2.Qc6#
- 1...Bc6
- 2.Qxc6#
- 1...Bg6
- 2.Qc6#
- 1...Bf7
- 2.Qc6#
- 1...Sb2
- 2.Re5#
- 2.Qe5#
- 1...Sd2
- 2.Sxf4#
- 2.Re5#
- 2.Qe5#
- 1...Sa3
- 2.Re5#
- 2.Qe5#
- 1...Se3
- 2.Sxf4#
- 1...Sa5
- 2.Re5#
- 2.Qe5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sb6
- 2.Re5#
- 2.Qe5#
- 1...Sb3
- 2.Be6#
- 1...Sxd3
- 2.Be6#
- 1...Sa4
- 2.Be6#
- 1...Se4
- 2.dxc4#
- 1...Sa6
- 2.Be6#
- 1...Se6
- 2.Bxe6#
- 1...Sb7
- 2.Be6#
- 1...Sd7
- 2.Bb7#
- 2.Qc6#
- 1...Qb2
- Tries
- 1.Sc6?
- threat
- 2.Sb4#
- 2.Sxe7#
- 1...Bf6+
- 2.Sxf6#
- 1...Qxe1
- 2.Sxf4#
- 2.Sb4#
- 1...Sxd3
- 2.Sxe7#
- 1...Sb3
- 2.Sxe7#
- 1...Sa4
- 2.Sxe7#
- 1...Se4
- 2.Sxe7#
- 1...Sa6
- 2.Sxe7#
- 1...Se6
- 2.Sxe7#
- 1...Sb7
- 2.Sxe7#
- 1...Sd7
- 2.Sxe7#
- 1...Qb2
- 2.Sxf4#
- 2.Sxe7#
- 1...Qa3
- 2.Sxf4#
- 2.Sxe7#
- 1...Qe3
- 2.Sb4#
- 1...Qb1
- 2.Sxf4#
- 2.Sxe7#
- 1...Re4
- 2.Sb4#
- 1...Bh4
- 2.Sb4#
- 1...Bg5
- 2.Sb4#
- 1...Bd6
- 2.Sf6#
- 2.Sb4#
- 1...Bd8
- 2.Sb4#
- 1...Bf8
- 2.Sf6#
- 2.Sb4#
- 1...Sb2
- 2.Sxe7#
- 2.Re5#
- 1...Sd2
- 2.Sxf4#
- 2.Sxe7#
- 2.Re5#
- 1...Sa3
- 2.Sxe7#
- 2.Re5#
- 1...Se3
- 2.Sxf4#
- 2.Sxe7#
- 1...Sa5
- 2.Sxe7#
- 2.Re5#
- 1...Se5
- 2.Sxe7#
- 2.Rxe5#
- 1...Sb6
- 2.Sxe7#
- 2.Re5#
- 1...Sd6
- 2.Sxe7#
- 2.Re5#
- 1...Bxc6!
- threat
- 1.Bb7+?
- 1...Bc6
- 2.Bxc6#
- 2.Qxc6#
- 1...Sxb7!
- 1...Bc6
- 1.dxc4+?
- 1...Rxc4
- 2.Re5#
- 2.Qe5#
- 1...Kxc4!
- 1...Rxc4
- 1.Sc6?
- Keys
- 1.Sa6!
- threat
- 2.Sb4#
- 1...Bf6+
- 2.Sxf6#
- 1...Sxd3
- 2.Be6#
- 1...Sxa6
- 2.Be6#
- 1...Qb2
- 2.Sxf4#
- 1...Qa3
- 2.Sxf4#
- 1...Qb1
- 2.Sxf4#
- 1...Sb2
- 2.Re5#
- 1...Sd2
- 2.Sxf4#
- 2.Re5#
- 1...Sa3
- 2.Re5#
- 1...Se3
- 2.Sxf4#
- 1...Sa5
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sb6
- 2.Re5#
- 1...Sd6
- 2.Qxc5#
- 1...Sb3
- 2.Be6#
- 1...Sa4
- 2.Be6#
- 1...Se4
- 2.dxc4#
- 1...Se6
- 2.Bxe6#
- 1...Sb7
- 2.Be6#
- 1...Sd7
- 2.Bb7#
- threat
- 1.Sa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD,P_PINP(B)::S(D),XR(d)
- Q(a);N_GUARD::S(D),XR(d)
- Q(a);N_GUARD,XR(A)::S(D),XR(d)
- B(h);N_GUARD::S(D)
- B(h);CHECK,N_GUARD::S(D),XB(h)
- B(i);N_GUARD,XS(D)::QAB1(E)
- B(i);N_GUARD::QAB1(E),XB(i)
- B(i);N_GUARD::QAB1(E)
- S(c);S_CUTQ(a)::S(D),XR(d)
- S(e);N_GUARD::B(G)
- S(e);N_GUARD,XP(C)::B(G)
- S(e);S_CUTR(d)::P(C),XS(c)
- S(e);N_GUARD::B(G),XS(e)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,N_GUARD::S(D),XB(h)
- S(e);XP(C)::S(F),XB(h)
- S(e);::S(F),XB(h)
- Q(a);::S(F)
- R(d);::S(F)
- B(h);::S(F)
- Refutation
- B(i);XS(F)
- Try
- B(G);CHECK
- Refutation
- S(e);XB(G)
- Try
- P(C);CHECK,XS(c)
- Refutation
- K(f);P_SPINS(e),S_FLIGHT,XP(C)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- B(h);CHECK,N_GUARD::S(D),XB(h)
- S(e);N_GUARD,XP(C)::B(G)
- S(e);N_GUARD,XS(F)::B(G)
- Q(a);N_GUARD,P_PINP(B)::S(D),XR(d)
- Q(a);N_GUARD::S(D),XR(d)
- S(c);N_GUARD::R1(A)
- S(c);S_CUTQ(a)::S(D),XR(d)
- S(c);N_GUARD::R1(A),XS(c)
- S(c);S_CUTB(h)::QAR1(E),XS(e)
- S(e);N_GUARD::B(G)
- S(e);S_CUTR(d)::P(C),XS(c)
- S(e);N_GUARD::B(G),XS(e)
- S(e);N_GUARD,S_CUTB(i)::B(G)
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).