MESON Chess Problem Database

Problem Display
PID: 48744 (nqR1K3/Nrb1p1P1/3kN1r1/p7/B2PP2p/7Q/b7/8 w - - 0 1)

Easter, Norris

1st Prize, Bristol Times and Mirror, 1932

nqR1K3/Nrb1p1P1/3kN1r1/p7/B2PP2p/7Q/b7/8

#2

9 + 10

371 The Chess Review 1933

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc8+
      • 2.Sxc8#
    • 1...Bd5
      • 2.e5#
    • 1...Bb6
      • 2.Sb5#
    • 1...Bd8
      • 2.Rc6#
  • Tries
    • 1.Qa3+?
      • 1...Kxe6
        • 2.Qxe7#
      • 1...Rb4!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qd7#
      • 1...Qxc8+
        • 2.Sxc8#
      • 1...Bf7+
        • 2.Sxf7#
      • 1...Re6
        • 2.Sf7#
      • 1...Be6
        • 2.Qh2#
      • 1...Bb6
        • 2.Sb5#
      • 1...Bd8
        • 2.Rc6#
      • 1...Sb6
        • 2.Qa3#
      • 1...e6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(j);CHECK,XR(H)::S(F),XQ(j)
    • B(a);SBLOCK::P(D)
    • B(g);S_CUTR(f)::S(F)
    • B(g);N_PINR(H)::R1(H)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,P-FLIGHT,XS(E)::QAR1(A),XP(h)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • Q(j);CHECK,XR(H)::S(F),XQ(j)
      • B(a);CHECK,N_GUARD::S(E),XB(a)
      • R(e);S_CUTB(a)::S(E)
      • B(a);S_CUTP(h)::QAB(A)
      • B(g);S_CUTR(f)::S(F)
      • B(g);N_PINR(H)::R1(H)
      • S(i);S_CUTR(f)::QAB(A)
      • P(h);S_CUTB(a)::S(E)
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