MESON Chess Problem Database
Problem Display
PID: 181325 (8/8/1N1npn1N/4k3/4p3/4P1p1/3Q2K1/b7 w - - 0 1)
Paboucek, Frantisek
Bulletin Ouvrier des Echecs, 1953
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 2.Sf7#
- 1...Sb7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Sc8
- 2.Sc4#
- 1...Sde8
- 2.Sc4#
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Sfe8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Bb2
- Tries
- 1.Kf1?
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Sfe8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 2.Sf7#
- 1...Sb7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Sc8
- 2.Sc4#
- 1...Sde8
- 2.Sc4#
- 1...g2+!
- 1...Sg4
- 1.Kg1?
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Sfe8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 2.Sf7#
- 1...Sb7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Sc8
- 2.Sc4#
- 1...Sde8
- 2.Sc4#
- 1...g2!
- 1...Sg4
- 1.Kh1?
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Sfe8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 2.Sf7#
- 1...Sb7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Sc8
- 2.Sc4#
- 1...Sde8
- 2.Sc4#
- 1...g2+!
- 1...Sg4
- 1.Kh3?
- 1...Sg4
- 2.Sd7#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Sfe8
- 2.Sd7#
- 1...Sg8
- 2.Sd7#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 2.exd4#
- 1...Sc4
- 2.Sxc4#
- 1...Sb5
- 2.Sc4#
- 1...Sf5
- 2.Sc4#
- 2.Sf7#
- 1...Sb7
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...Sc8
- 2.Sc4#
- 1...Sde8
- 2.Sc4#
- 1...g2!
- 1...Sg4
- 1.Qa5+?
- 1...Sd5
- 2.Sd7#
- 1...Sb5!
- 1...Sd5
- 1.Qf2?
- threat
- 2.Qxg3#
- 2.Qf4#
- 1...Sf5
- 2.Sf7#
- 2.Qf4#
- 1...Sg4
- 2.Sxg4#
- 2.Qf4#
- 1...Sd5
- 2.Sd7#
- 2.Sg4#
- 1...Sh5
- 2.Sg4#
- 1...Sd7
- 2.Sg4#
- 2.Qf4#
- 1...Sh7
- 2.Sg4#
- 2.Qf4#
- 1...Sfe8
- 2.Sg4#
- 2.Qf4#
- 1...Sg8
- 2.Sg4#
- 2.Qf4#
- 1...gxf2!
- threat
- 1.Qd5+?
- 1...Sxd5
- 2.Sd7#
- 1...exd5!
- 1...Sxd5
- 1.Kf1?
- Keys
- 1.Qe1!
- threat
- 2.Qxg3#
- 2.Qxa1#
- 1...Sc4
- 2.Qxg3#
- 1...Sb5
- 2.Qxg3#
- 1...Sf5
- 2.Sf7#
- 1...Sb7
- 2.Qxg3#
- 1...Sf7
- 2.Qxg3#
- 1...Sc8
- 2.Qxg3#
- 1...Sde8
- 2.Qxg3#
- 1...Sg4
- 2.Qxa1#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Qxa1#
- 1...Sd7
- 2.Qxa1#
- 1...Sh7
- 2.Qxa1#
- 1...Sfe8
- 2.Qxa1#
- 1...Sg8
- 2.Qxa1#
- 1...Bb2
- 2.Qxg3#
- 1...Bc3
- 2.Qxc3#
- 2.Qxg3#
- 1...Bd4
- 2.Qxg3#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 13
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::QAB(A),XB(a)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- S(g);N_GUARD::S(D)
- S(g);N_GUARD::S(D),XS(g)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- S(g);N_GUARD::S(D)
- S(g);N_GUARD::S(D),XS(g)
- B(a);N_GUARD::QAB(A),XB(a)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- Refutation
- P(b);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- S(g);N_GUARD::S(D)
- S(g);N_GUARD::S(D),XS(g)
- B(a);N_GUARD::QAB(A),XB(a)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- Refutation
- P(b);
- Try
- K(B);S_FLIGHT
- Vars
- S(g);N_GUARD::S(D)
- S(g);N_GUARD::S(D),XS(g)
- B(a);N_GUARD::QAB(A),XB(a)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- Refutation
- P(b);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- S(g);N_GUARD::S(D)
- S(g);N_GUARD::S(D),XS(g)
- B(a);N_GUARD::QAB(A),XB(a)
- S(e);N_GUARD::S(D),XS(e)
- S(e);N_GUARD::S(D)
- Refutation
- P(b);
- Try
- Q(A);CHECK
- Vars
- S(g);P_SPINS(g)::S(D)
- Refutation
- S(e);P_SPINS(e)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(g);N_GUARD::S(E)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(g);SBLOCK,XQ(A)::S(D)
- Refutation
- P(f);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(e);::QAB(A),XP(b)
- S(e);N_GUARD,SBLOCK::S(E)
- S(g);::QAB(A),XB(a)
- S(g);N_GUARD,SBLOCK::S(D)
- B(a);::QAB(A),XP(b)
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).