MESON Chess Problem Database

Problem Display
PID: 106281 (Kn6/3p3Q/4pR2/1N1kN3/B2P1b2/1Pp3n1/4P3/3R2B1 w - - 0 1)

Salai, Ladislav

Praca, 1954

Kn6/3p3Q/4pR2/1N1kN3/B2P1b2/1Pp3n1/4P3/3R2B1

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qh1#
      • 2.e4#
    • 1...Sh1
      • 2.Qxh1#
      • 2.e4#
    • 1...Sxe2
      • 2.Qh1#
    • 1...Sf5
      • 2.Qh1#
    • 1...Sh5
      • 2.e4#
    • 1...d6
      • 2.Sxc3#
      • 2.Sc7#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Sxc3#
      • 1...Kc6
        • 2.d5#
      • 1...Sxe2
        • 2.Qh1#
      • 1...Bd2
        • 2.Sc7#
      • 1...c2
        • 2.Sc3#
      • 1...Se4!
    • 1.Sf7?
      • threat
        • 2.Sxc3#
      • 1...Kc6
        • 2.d5#
      • 1...Sxe2
        • 2.Qh1#
      • 1...Bd2
        • 2.Sc7#
      • 1...c2
        • 2.Sc3#
      • 1...Se4!
    • 1.Rxf4?
      • 1...Sxe2
        • 2.Qe4#
        • 2.Qh1#
      • 1...Sf1
        • 2.Qe4#
        • 2.Qh1#
        • 2.e4#
      • 1...Sh1
        • 2.Qe4#
        • 2.Qxh1#
        • 2.e4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf5
        • 2.Qh1#
        • 2.e4#
      • 1...Sh5
        • 2.Qe4#
        • 2.e4#
      • 1...Sa6
        • 2.Qxd7#
      • 1...Sc6
        • 2.Qxd7#
      • 1...d6
        • 2.Sxc3#
        • 2.Sc7#
      • 1...c2!
    • 1.Qe4+?
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Sxe4!
    • 1.Qxd7+?
      • 1...Ke4
        • 2.Sxc3#
      • 1...Sxd7!
    • 1.b4?
      • threat
        • 2.Bb3#
      • 1...Sf5
        • 2.Qh1#
      • 1...Bxe5!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Se7#
      • 1...Ke4
        • 2.Sxc3#
      • 1...Kc6
        • 2.d5#
      • 1...Bd6
        • 2.Sxc3#
      • 1...Sf5
        • 2.Qh1#
      • 1...Sc6
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD,XP(C)::QAB(J)
    • S(b);N_GUARD::QAB(J)
    • S(b);N_GUARD::P(C)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(G),XP(a)
      • Vars
        • K(d);OGATE,P_SPINP(e),S_FLIGHT::P(F)
        • S(b);N_GUARD,XP(C)::QAB(J)
        • B(c);N_GUARD::S(G)
        • P(a);::S(G)
      • Refutation
        • S(b);
    • Try
      • S(H);
      • Threat
        • S(G),XP(a)
      • Vars
        • K(d);OGATE,P_SPINP(e),S_FLIGHT::P(F)
        • S(b);N_GUARD,XP(C)::QAB(J)
        • B(c);N_GUARD::S(G)
        • P(a);::S(G)
      • Refutation
        • S(b);
    • Try
      • R(I);XB(c)
      • Vars
        • S(b);N_GUARD::QAB1(J),XS(b)
        • S(g);N_GUARD::QAR2(J),XP(f)
      • Refutation
        • P(a);
    • Try
      • Q(J);CHECK
      • Vars
        • K(d);S_FLIGHT,XQ(J)::S(G),XP(a)
      • Refutation
        • S(b);XQ(J)
    • Try
      • Q(J);CHECK,XP(f)
      • Vars
        • K(d);S_FLIGHT::S(G),XP(a)
      • Refutation
        • S(g);XQ(J)
    • Try
      • P(D);
      • Threat
        • B(E)
      • Vars
        • S(b);N_GUARD::QAB(J)
      • Refutation
        • B(c);XS(H)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(d);S_FLIGHT::S(G),XP(a)
      • K(d);OGATE,P_SPINP(e),S_FLIGHT::P(F)
      • B(c);SBLOCK::S(G),XP(a)
      • S(b);N_GUARD::QAB(J)
      • S(g);SBLOCK::S(H),XB(c)
HTML5 logo

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).