MESON Chess Problem Database

Problem Display
PID: 76660 (4Nr2/5pBB/2q1n3/rnR2P2/R1p1kN2/3p1p2/b2Q3K/b7 w - - 0 1)

Holladay, Edgar Dinwiddie

British Chess Magazine, 1951

4Nr2/5pBB/2q1n3/rnR2P2/R1p1kN2/3p1p2/b2Q3K/b7

#2

9 + 12

6232 Holladay Chess Problems 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.f6#
    • 1...Sbd4
      • 2.Sf6#
    • 1...Sed4
      • 2.Re5#
  • Tries
    • 1.Raxc4+?
      • 1...Bd4
        • 2.Sf6#
        • 2.Re5#
        • 2.f6#
      • 1...Sbd4
        • 2.Sf6#
        • 2.f6#
      • 1...Sed4
        • 2.Re5#
        • 2.f6#
      • 1...Bxc4!
    • 1.Re5+?
      • 1...Kd4
        • 2.Qxd3#
      • 1...Bxe5!
  • Keys
    • 1.Kg3!
      • threat
        • 2.Qe1#
        • 2.Qxd3#
      • 1...Qxc5
        • 2.Qxd3#
      • 1...Rxa4
        • 2.Qe1#
      • 1...Bxg7
        • 2.Qxd3#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Sxc5
        • 2.Qe1#
      • 1...Sxg7
        • 2.Qxd3#
      • 1...Be5
        • 2.Qxd3#
      • 1...Bf6
        • 2.Qxd3#
      • 1...f6
        • 2.Qxd3#
      • 1...Qd5
        • 2.Qe1#
      • 1...Qd7
        • 2.Qe1#
      • 1...Qd6
        • 2.Qe1#
      • 1...Bc3
        • 2.Qxd3#
      • 1...Bd4
        • 2.f6#
      • 1...Bb1
        • 2.Qe1#
      • 1...Sc3
        • 2.Qxd3#
      • 1...Sbd4
        • 2.Sf6#
      • 1...Sed4
        • 2.Re5#
      • 1...f2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • B(a);N_SPINP(e),SBLOCK::B(H)+P(F)
    • S(h);N_SPINP(e),SBLOCK,S_CUTB(a)::S(I)
    • S(j);N_SPINP(e),SBLOCK,S_CUTB(a)::R1(E)
  • Tries
    • Try
      • R(C);CHECK,XP(e)
      • Refutation
        • B(b);XR(C)
    • Try
      • R(E);CHECK
      • Vars
        • K(f);N_SPINP(e),P-FLIGHT,P_SPINP(c)::QAR1(A),XP(c)
      • Refutation
        • B(a);P_PINS(D),XR(E)
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • Q(i);XR(E)::QAB1(A),XP(c)
      • R(g);N_SPINP(e),XR(C)::QAR(A)
      • B(a);XB(G)::QAB1(A),XP(c)
      • S(j);OGATE,XS(D)::QAR1(A),XS(j)
      • S(j);XR(E)::QAR(A)
      • S(j);XB(G)::QAB1(A),XP(c)
      • B(a);P_PINS(D)::QAB1(A),XP(c)
      • B(a);::QAB1(A),XP(c)
      • P(k);::QAB1(A),XP(c)
      • Q(i);::QAR(A)
      • Q(i);P_PINS(D)::QAR(A)
      • B(a);N_SPINP(e),SBLOCK::B(H)+P(F)
      • B(b);::QAR(A)
      • S(h);::QAB1(A),XP(c)
      • S(h);N_SPINP(e),SBLOCK,S_CUTB(a)::S(I)
      • S(j);N_SPINP(e),SBLOCK,S_CUTB(a)::R1(E)
      • P(d);::QAB1(A),XP(c)
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