MESON Chess Problem Database

Problem Display
PID: 230392 (K7/1Qp5/7p/R3N2k/3p2br/3N1n2/4B3/7q w - - 0 1)

Eddy, Edwin John

Sunday Chronicle, 1948

(First published on Sun Jul 11 1948)

K7/1Qp5/7p/R3N2k/3p2br/3N1n2/4B3/7q

#2

6 + 8

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Sf4#
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qg6#
      • 1...Kg5
        • 2.Qg6#
      • 1...Sxe5
        • 2.Rxe5#
      • 1...Rh2
        • 2.Qxg4#
      • 1...Rh3
        • 2.Qxg4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Se1
        • 2.Sc6#
      • 1...Sg1
        • 2.Sc6#
      • 1...Sd2
        • 2.Sc6#
      • 1...Sh2
        • 2.Sc6#
      • 1...Sg5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(b);P_PINQ(E),P_SPINB(d),SBLOCK::S(B)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • K(f);P-FLIGHT::QAR1(E)
      • S(b);OGATE,P_PINQ(E),P_SPINB(d),P_SPINS(b),XS(D)::R(C),XS(b)
      • R(e);N_GUARD::QAB1(E),XB(d)
      • B(d);N_GUARD,P_SPINS(b)::QAR2(E),XB(d)
      • S(b);N_GUARD,P_PINQ(E),P_SPINB(d)::R(C)+S(D)
      • S(b);P_PINQ(E),P_SPINB(d),SBLOCK::S(B)
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