MESON Chess Problem Database

Problem Display
PID: 136011 (K2Rn1r1/B1p5/p1k5/7B/2P1Np2/8/4P3/r7 w - - 0 1)

Kohring, Rolf

Mat Plus, 2009

K2Rn1r1/B1p5/p1k5/7B/2P1Np2/8/4P3/r7

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Bxe8#
    • 1...Rg2
      • 2.Bxe8#
    • 1...Rg3
      • 2.Bxe8#
    • 1...Rg4
      • 2.Bxe8#
    • 1...Rg5
      • 2.Bxe8#
  • Keys
    • 1.Bf3!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Rf1
        • 2.Sf2#
      • 1...Rd1
        • 2.Sd2#
      • 1...Ra3
        • 2.Sc3#
      • 1...Ra5
        • 2.Sc5#
      • 1...Rg3
        • 2.Sxg3#
      • 1...Rg5
        • 2.Sxg5#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sf6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::B(D),XS(f)
  • Actual
    • B(D);
    • Threat
      • DUALS(8)
    • Vars
      • R(a);::B(D)+S(C)
      • R(g);::B(D)+S(C),XR(g)
      • S(f);P_PINR(G)::B(D)+S(C),XS(f)
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