MESON Chess Problem Database

Problem Display
PID: 148171 (3R4/8/1n3B2/R6r/p1b1Nk1p/4p1pP/1n1r2P1/KBQ5 w - - 0 1)

Barnes, Barry Peter

Chess, 1955

3R4/8/1n3B2/R6r/p1b1Nk1p/4p1pP/1n1r2P1/KBQ5

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Bxg5#
    • 1...Rh6
      • 2.Bg5#
    • 1...Rh7
      • 2.Bg5#
    • 1...Rh8
      • 2.Bg5#
    • 1...e2
      • 2.Qxd2#
  • Keys
    • 1.Sg5!
      • threat
        • 2.Rf5#
      • 1...Rxg5
        • 2.Bxg5#
      • 1...e2
        • 2.Qxd2#
      • 1...Rc2
        • 2.Rd4#
      • 1...Rd3
        • 2.Qf1#
      • 1...Rd5
        • 2.Se6#
      • 1...Bd3
        • 2.Qc7#
      • 1...Bb5
        • 2.Se6#
      • 1...Bd5
        • 2.Qc7#
      • 1...Be6
        • 2.Sxe6#
      • 1...Sd3
        • 2.Rd4#
      • 1...Sd5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 3
  • Sets
    • R(i);N_GUARD::B(H),XR(i)
    • R(i);N_GUARD::B(H)
    • P(c);OGATEB,P_SPINR(b)::QAB(C),XR(b)
  • Actual
    • S(F);
    • Threat
      • R1(G)
    • Vars
      • R(i);OGATE,XS(F)::B(H),XR(i)
      • P(c);OGATEB,P_SPINR(b)::QAB(C),XR(b)
      • R(b);N_GUARD,P_SPINP(c)::R(I)
      • R(b);N_GUARD,P_SPINP(c),S_CUTB(f)::QAR(C)
      • R(b);P_SPINP(c),S_CUTB(f)::S(F)
      • B(f);OGATE::QAB(C)
      • B(f);N_GUARD::S(F)
      • B(f);N_GUARD::S(F),XB(f)
      • S(a);S_CUTR(b)::R(I)
      • S(j);S_CUTB(f)::S(F)
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