MESON Chess Problem Database

Problem Display
PID: 174471 (3K4/2p1pR1B/R1Nb4/2pk2rQ/4rp2/3P1P2/2P3N1/B7 w - - 0 1)

Reeves, Alfred Christopher

3rd Prize, Busmen's Chess Review, 1968-1969

3K4/2p1pR1B/R1Nb4/2pk2rQ/4rp2/3P1P2/2P3N1/B7

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ree5
      • 2.Sxf4#
    • 1...Re6
      • 2.c4#
    • 1...Be5
      • 2.Sxe7#
    • 1...e6
      • 2.Bxe4#
      • 2.fxe4#
  • Tries
    • 1.Rf5+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Re5
        • 2.Sxf4#
      • 1...Be5
        • 2.Sxe7#
      • 1...e5
        • 2.Qf7#
      • 1...Rxf5!
    • 1.Qxg5+?
      • 1...Ke6
        • 2.Qf5#
      • 1...Re5
        • 2.Sxf4#
      • 1...Be5
        • 2.Sxe7#
      • 1...e5!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Rf5#
      • 1...Ke6
        • 2.Rf6#
      • 1...Be5
        • 2.Sxe7#
      • 1...Ree5
        • 2.Sxf4#
      • 1...Re6
        • 2.c4#
      • 1...Rge5
        • 2.Rxe7#
      • 1...Rf5
        • 2.Rxf5#
      • 1...e5
        • 2.Rg7#
      • 1...e6
        • 2.fxe4#

There are these versions: 179564

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD,N_SPINR(e),S_CUTB(f)::S(C),XP(b)
    • R(a);N_GUARD,SBLOCK::P(B)
    • B(f);N_GUARD,N_SPINR(e),S_CUTR(a)::S(H),XP(h)
  • Tries
    • Try
      • R(I);CHECK,N_PINR(e)
      • Vars
        • K(d);S_FLIGHT::QAB1(F)
        • R(a);P_SPINR(a)::S(C),XP(b)
        • B(f);P_SPINB(f)::S(H),XP(h)
        • P(h);P_SPINP(h)::QAB(F)
      • Refutation
        • R(e);P_SPINR(e),XR(I)
    • Try
      • Q(F);CHECK,XR(e)
      • Vars
        • K(d);S_FLIGHT::QAB1(F)
        • R(a);P_SPINR(a)::S(C),XP(b)
        • B(f);P_SPINB(f)::S(H),XP(h)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • B(J);
    • Threat
      • B(J)+R(I),DCHECK
    • Vars
      • K(d);N_SPINR(e),S_FLIGHT::B(J)+R(I),DCHECK
      • B(f);N_GUARD,N_SPINR(e),S_CUTR(a)::S(H),XP(h)
      • R(a);N_GUARD,N_SPINR(e),S_CUTB(f)::S(C),XP(b)
      • R(a);N_GUARD,SBLOCK::P(B)
      • R(e);S_CUTR(a)::B(J)+R(I),XP(h)
      • R(e);::B(J)+R(I),DCHECK,XR(e)
      • P(h);N_GUARD,N_SPINR(e),S_CUTR(a)::B(J)+R(I)
      • P(h);SBLOCK::P(E),XR(a)
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