MESON Chess Problem Database

Problem Display
PID: 51306 (Nbn5/5p2/5Q2/p1rkp3/K1p5/5P2/1Rn1N2B/8 w - - 0 1)

Waddington, I

Manchester Guardian, 1957

Nbn5/5p2/5Q2/p1rkp3/K1p5/5P2/1Rn1N2B/8

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Rxb5#
    • 1...Sa1
      • 2.Rd2#
    • 1...Sa3
      • 2.Rd2#
    • 1...Se3
      • 2.Rd2#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sb6+
      • 2.Sxb6#
    • 1...Sa7
      • 2.Sb6#
    • 1...Se7
      • 2.Sb6#
    • 1...e4
      • 2.Sc3#
  • Keys
    • 1.Rb6!
      • threat
        • 2.Qxf7#
      • 1...Sxb6+
        • 2.Sxb6#
      • 1...Rb5
        • 2.Rxb5#
        • 2.Qc6#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Rc7
        • 2.Qxe5#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sd6
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(d);OGATEB::R(A),XR(d)
    • S(a);OGATE::R(A)
    • S(a);SBLOCK::S(B)
    • S(i);CHECK,N_GUARD::S(G),XS(i)
    • S(i);N_GUARD::S(G)
    • P(f);::S(B)
  • Actual
    • R(A);
    • Threat
      • QAB(F),XP(g)
    • Vars
      • S(i);CHECK,XR(A)::S(G),XS(i)
      • R(d);N_GUARD::QAB1(F),XR(d)
      • R(d);S_CUTB(h)::QAR1(F),XP(f)
      • S(a);SBLOCK::S(B)
      • S(i);S_CUTB(h)::QAR1(F),XP(f)
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