MESON Chess Problem Database

Problem Display
PID: 234903 (K1b1N3/1nb2p1B/2n5/4PP2/2P1kNRp/R3P1p1/2p1P1P1/7Q w - - 0 1)

Haring, Jacobus

Hlas l'udu, 1970

K1b1N3/1nb2p1B/2n5/4PP2/2P1kNRp/R3P1p1/2p1P1P1/7Q

#2

13 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Sd3#
    • 1...Sxe5
      • 2.Sf6#
  • Tries
    • 1.Qa1?
      • threat
        • 2.Sh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Se6#
        • 2.Sf6#
      • 1...Sxe5
        • 2.Sf6#
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Bd8
        • 2.Sh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Se6#
      • 1...Be6
        • 2.Sh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Sxe6#
        • 2.Sf6#
      • 1...h3
        • 2.Sxh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Se6#
        • 2.Sf6#
      • 1...f6
        • 2.Sh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Se6#
        • 2.Sxf6#
      • 1...Bxe5!
    • 1.Qf1?
      • threat
        • 2.Sg6#
      • 1...Kxe5
        • 2.Sd3#
      • 1...Bxe5
        • 2.Qf3#
      • 1...Sxe5
        • 2.Sf6#
      • 1...Bxf5!
    • 1.Qg1?
      • threat
        • 2.Sd3#
      • 1...Kxe5
        • 2.Sd3#
      • 1...Sxe5
        • 2.Sf6#
      • 1...Bxe5!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sd3#
      • 1...Kxe5
        • 2.Sd3#
      • 1...Bxe5
        • 2.Qxc2#
      • 1...Sxe5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,XP(I)::S(G)
    • S(e);SBLOCK,XP(I)::S(M)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(5)
      • Vars
        • S(e);N_GUARD::QAR1(A),XS(e)
      • Refutation
        • B(g);XP(I)
    • Try
      • Q(A);
      • Threat
        • R(H)+S(G)
      • Vars
        • K(c);P-FLIGHT,XP(I)::S(G)
        • B(g);SBLOCK,XP(I)::QAB1(A)
        • S(e);SBLOCK,XP(I)::S(M)
      • Refutation
        • B(i);P_SPINB(i),XP(J)
    • Try
      • Q(A);
      • Threat
        • R(H)+S(G)
      • Vars
        • K(c);P-FLIGHT,XP(I)::S(G)
        • S(e);SBLOCK,XP(I)::S(M)
      • Refutation
        • B(g);XP(I)
  • Actual
    • Q(A);
    • Threat
      • R(H)+S(G)
    • Vars
      • K(c);P-FLIGHT,XP(I)::S(G)
      • B(g);SBLOCK,XP(I)::QAB(A),XP(a)
      • S(e);SBLOCK,XP(I)::S(M)
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).