MESON Chess Problem Database

Problem Display
PID: 76867 (b1q1n3/3R4/4B2b/R2r3r/1pkBN1pP/1N6/2P3K1/8 w - - 0 1)

Gamage, Frederick

Frederick Gamage (Prcic), 2004

b1q1n3/3R4/4B2b/R2r3r/1pkBN1pP/1N6/2P3K1/8

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Rc5#
    • 1...Qb7
      • 2.Rc5#
    • 1...Qxd7
      • 2.Rc5#
    • 1...Qc5
      • 2.Rxc5#
    • 1...Qb8
      • 2.Rc5#
    • 1...Qd8
      • 2.Rc5#
    • 1...Rg5
      • 2.Sed2#
    • 1...Bd2
      • 2.Sexd2#
    • 1...Bg7
      • 2.Sed2#
    • 1...Bf8
      • 2.Sed2#
    • 1...Bc6
      • 2.Rc5#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sf6
      • 2.Sd6#
    • 1...Sc7
      • 2.Sd6#
      • 2.Rc5#
    • 1...Sg7
      • 2.Sd6#
  • Tries
    • 1.Rc7+?
      • 1...Bc6
        • 2.Rc5#
      • 1...Sxc7
        • 2.Sd6#
        • 2.Rc5#
      • 1...Qxc7!
  • Keys
    • 1.Bxg4!
      • threat
        • 2.Be2#
      • 1...Rxd4
        • 2.Rxd4#
      • 1...Rdg5
        • 2.Sd2#
      • 1...Rhg5
        • 2.Sed2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • Q(h);N_GUARD::R1(G)
    • Q(h);N_GUARD,XR(I)::R1(G)
    • Q(h);N_GUARD::R1(G),XQ(h)
    • R(e);S_CUTB(f)::S(E)
    • B(f);N_GUARD::S(E),XB(f)
    • B(f);N_GUARD::S(E)
    • B(g);S_CUTQ(h)::R1(G)
    • S(i);N_GUARD::S(E),XS(i)
    • S(i);N_GUARD::S(E)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • B(g);P_SPINB(g)::R1(G)
      • Refutation
        • Q(h);XR(I)
  • Actual
    • B(H);N_PINR(d),XP(c)
    • Threat
      • B(H)
    • Vars
      • R(d);OGATE,P_PINS(E),XB(D)::R1(I),XR(d)
      • R(d);P_PINB(H),P_PINS(E),S_CUTB(f)::S(C)
      • R(e);P_PINB(H),S_CUTB(f)::S(E)
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