MESON Chess Problem Database

Problem Display
PID: 67868 (2R4B/6rr/3p4/3p2Q1/p2k3n/3P1p2/1P1N1N2/6Kb w - - 0 1)

Vaughan, Colin V

Chess, 1948

2R4B/6rr/3p4/3p2Q1/p2k3n/3P1p2/1P1N1N2/6Kb

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Bxg7#
    • 1...Bg2
      • 2.Qf4#
    • 1...Sg2
      • 2.Sxf3#
    • 1...a3
      • 2.Sb3#
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qg4#
      • 1...Rxh8
        • 2.Qxg7#
      • 1...dxc4
        • 2.Rxc4#
      • 1...Sg2
        • 2.Qf6#
      • 1...Sg6
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(i);N_GUARD::B(H),XR(h)
    • B(a);N_PINQ(F)::QAR2(F)
    • S(e);N_GUARD,N_PINQ(F),S_CUTB(a)::S(C),XP(b)
    • P(c);N_GUARD::S(C)
  • Actual
    • S(C);
    • Threat
      • QAR(F)
    • Vars
      • R(i);N_GUARD,N_SPINR(h),XB(H)::QAB(F),XR(h)
      • P(f);OGATE,XS(C)::R1(G),XP(f)
      • S(e);N_PINQ(F)::QAB(F)
      • S(e);N_PINQ(F)::QAB1(F)
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