MESON Chess Problem Database

Problem Display
PID: 141796 (7Q/8/1n1pKN2/1P1p4/2BknNRb/P1R1p1p1/3p1p2/Bb3q2 w - - 0 1)

Henriksen, Thorleif Cammillo

1st Prize, Good Companions (November Pageant Ty.), 1916

7Q/8/1n1pKN2/1P1p4/2BknNRb/P1R1p1p1/3p1p2/Bb3q2

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc3
      • 2.Sd3#
    • 1...Sxf6
      • 2.Sd3#
  • Tries
    • 1.Sd7+?
      • 1...Sf6
        • 2.Se2#
        • 2.Sd3#
      • 1...Bf6!
    • 1.Rc1+?
      • 1...Sc3
        • 2.Sd3#
      • 1...Kc5!
    • 1.Rc2+?
      • 1...Sc3
        • 2.Sd3#
      • 1...Kc5!
  • Keys
    • 1.Kf5!
      • threat
        • 2.Se6#
      • 1...Sxc3+
        • 2.Sd3#
      • 1...Sc5+
        • 2.Rc2#
      • 1...Sg5+
        • 2.Se4#
      • 1...Sxf6+
        • 2.Sd3#
      • 1...Kc5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(h);P_SPINS(h),XR(C)::R(F)+S(E)
    • S(h);P_SPINS(h),XS(I)::R(F)+S(E)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • B(i);P_SPINB(i)
    • Try
      • R(C);CHECK
      • Vars
        • S(h);P_SPINS(h)::R(F)+S(E)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • S(h);P_SPINS(h)::R(F)+S(E)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • S(E)
    • Vars
      • S(h);CHECK,P_SPINS(h),XR(C)::R(F)+S(E)
      • S(h);CHECK,N_GUARD,SBLOCK::B(A)+R(C)
      • S(h);CHECK,S_CUTB(i)::QAB(J)+S(I)
      • S(h);CHECK,P_SPINS(h),XS(I)::R(F)+S(E)
      • K(g);S_FLIGHT::S(E)
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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).