MESON Chess Problem Database

Problem Display
PID: 53877 (B3b2b/1R3R2/4p3/1p4rn/3p1rpp/1N1P1kp1/3B3n/3K2QN w - - 0 1)

Beale, John Lindsay

Chess Life, 1955

B3b2b/1R3R2/4p3/1p4rn/3p1rpp/1N1P1kp1/3B3n/3K2QN

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rff5
      • 2.Rbd7#
    • 1...Rf6
      • 2.Sxd4#
    • 1...Rxf7
      • 2.Rxf7#
    • 1...Re5
      • 2.Sxd4#
    • 1...Rg6
      • 2.Rbd7#
    • 1...Rg7
      • 2.Sxd4#
      • 2.Rbd7#
    • 1...Rg8
      • 2.Rbd7#
    • 1...Be5
      • 2.Rbd7#
    • 1...Sf1
      • 2.Qxf1#
    • 1...Sg7
      • 2.Sxd4#
      • 2.Rxf4#
    • 1...g2
      • 2.Qf2#
  • Keys
    • 1.Bc1!
      • threat
        • 2.Sd2#
      • 1...Rxf7
        • 2.Rxf7#
      • 1...Rf6
        • 2.Sxd4#
      • 1...Rff5
        • 2.Rbd7#
      • 1...Sf1
        • 2.Qxf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(e);S_CUTR(i)::B(I)+R(G)
    • R(e);S_CUTB(m)::S(E),XP(d)
    • R(e);N_SPINR(e),OGATE,XR(H)::B(I)+R(G),DCHECK,XR(e)
    • R(i);S_CUTB(m)::S(E),XP(d)
    • R(i);N_GUARD::B(I)+R(G)
    • B(m);S_CUTR(i)::B(I)+R(G)
    • S(a);N_GUARD::QAR2(B),XS(a)
    • P(c);N_GUARD::QAR1(B)
  • Actual
    • B(D);
    • Threat
      • S(E)
    • Vars
      • R(e);N_SPINR(e),OGATE,XR(H)::B(I)+R(G),DCHECK,XR(e)
      • R(e);S_CUTB(m)::S(E),XP(d)
      • R(e);S_CUTR(i)::B(I)+R(G)
      • S(a);N_GUARD::QAR2(B),XS(a)
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