Problem Display
PID: 74542 (1nB5/b3R1N1/1Qp1nrpB/4p3/4k1pq/6PN/Kp4P1/3R4 w - - 0 1)

Gamage, Frederick

1st Prize, Washington Star, 1942-1943

1nB5/b3R1N1/1Qp1nrpB/4p3/4k1pq/6PN/Kp4P1/3R4

#2

10 + 11


5397 Frederick Gamage (Prcic) 2004

SOLUTION


  • SOUND
  • Sets
    • 1...Rf2
      • 2.Sxf2#
    • 1...Sd4
      • 2.Rxd4#
    • 1...Sf4
      • 2.Sf2#
    • 1...Sc5
      • 2.Qb4#
    • 1...Sc7
      • 2.Rd4#
    • 1...Sxg7
      • 2.Rd4#
    • 1...Sd8
      • 2.Rd4#
    • 1...Sf8
      • 2.Rd4#
    • 1...Sa6
      • 2.Qxc6#
    • 1...Sd7
      • 2.Qxc6#
    • 1...b1Q+
      • 2.Qxb1#
    • 1...b1S
      • 2.Qxb1#
    • 1...b1B+
      • 2.Qxb1#
    • 1...b1R
      • 2.Qxb1#
  • Keys
    • 1.Se8!
      • threat
        • 2.Sd6#
      • 1...b1Q+
        • 2.Qxb1#
      • 1...b1B+
        • 2.Qxb1#
      • 1...Kf5
        • 2.Sd6#
      • 1...Sd4
        • 2.Rxd4#
      • 1...Sf4
        • 2.Sf2#
      • 1...Sc5
        • 2.Qb4#
      • 1...Sg5
        • 2.Sxf6#
      • 1...Sc7
        • 2.Rd4#
      • 1...Sg7
        • 2.Rd4#
      • 1...Sd8
        • 2.Rd4#
      • 1...Sf8
        • 2.Rd4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(h);N_GUARD::S(E),XR(h)
    • S(g);N_GUARD,P_SPINP(e)::R1(A),XS(g)
    • S(g);P_SPINP(e),S_CUTR(h)::S(E)
    • S(g);N_GUARD,P_SPINP(e),S_CUTB(j)::QAR(F)
    • S(g);N_GUARD,P_SPINP(e)::R1(A)
    • S(g);N_GUARD,P_SPINP(e),XS(I)::R1(A)
    • S(k);N_GUARD::QAB(F),XP(f)
    • P(a);CHECK,OGATE::QAB(F),XQ(a)
    • P(a);OGATE::QAB(F),XS(a)
    • P(a);CHECK,OGATE::QAB(F),XB(a)
    • P(a);OGATE::QAB(F),XR(a)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • P(a);CHECK,OGATE::QAB(F),XQ(a)
      • P(a);CHECK,OGATE::QAB(F),XB(a)
      • K(b);P_SPINS(g),S_FLIGHT::S(I)
      • S(g);N_GUARD,P_SPINP(e)::R1(A),XS(g)
      • S(g);P_SPINP(e),S_CUTR(h)::S(E)
      • S(g);N_GUARD,P_SPINP(e),S_CUTB(j)::QAR(F)
      • S(g);P_SPINP(e),S_CUTQ(d)::S(I),XR(h)
      • S(g);N_GUARD,P_SPINP(e)::R1(A)


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).