MESON Chess Problem Database

Problem Display
PID: 106774 (K1N5/2b1Qp1r/5P2/1P1kN3/4n2R/2p1P3/2P1n3/5B2 w - - 0 1)

Driver, John Edward

The Field, 1955

(First published on Thu Apr 14 1955)

K1N5/2b1Qp1r/5P2/1P1kN3/4n2R/2p1P3/2P1n3/5B2

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Sb6#
    • 1...Bb6
      • 2.Sxb6#
    • 1...Bb8
      • 2.Sb6#
    • 1...Sc1
      • 2.Bc4#
    • 1...Sg1
      • 2.Bc4#
    • 1...S2g3
      • 2.Bc4#
    • 1...Sd4
      • 2.Bc4#
    • 1...Sf4
      • 2.Bc4#
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qxe4#
      • 1...Kc4
        • 2.Qc5#
      • 1...Rxh4
        • 2.Qxf7#
      • 1...Sxf6
        • 2.Sb4#
      • 1...Bf4
        • 2.Sb6#
      • 1...Be5
        • 2.Sb6#
      • 1...S2g3
        • 2.Sb4#
      • 1...Sd4
        • 2.Sb4#
      • 1...Sf4
        • 2.Sb4#
      • 1...Sd2
        • 2.Sb4#
      • 1...Sf2
        • 2.Sb4#
      • 1...S4g3
        • 2.Sb4#
      • 1...Sc5
        • 2.Sb4#
      • 1...Sg5
        • 2.Sb4#
      • 1...Sd6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 10
    • REMOVED MATES = 4
  • Sets
    • B(e);N_GUARD,XS(F)::S(J)
    • B(e);N_GUARD::S(J),XB(e)
    • B(e);N_GUARD::S(J)
    • S(a);OGATE::B(A)
  • Actual
    • S(F);
    • Threat
      • QAB1(H),XS(c)
    • Vars
      • K(d);P_SPINS(c),S_FLIGHT::QAR1(H)
      • R(g);N_GUARD,XR(D)::QAB(H),XP(f)
      • S(c);XP(G)::S(F)
      • B(e);N_GUARD::S(J)
      • S(a);::S(F)
      • S(c);::S(F)
      • S(c);S_CUTB(e)::QAR1(H)
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