MESON Chess Problem Database

Problem Display
PID: 81558 (bB2R3/b2Rpr2/1p5n/q3N1QK/2p1kpPn/1p2p3/1P2P3/1N1B4 w - - 0 1)

Bennett, Frederick

The Field, 1952

(First published on Sat Feb 23 1952)

bB2R3/b2Rpr2/1p5n/q3N1QK/2p1kpPn/1p2p3/1P2P3/1N1B4

#2

11 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qa1
      • 2.Sc3#
    • 1...Qa2
      • 2.Sc3#
    • 1...Qa3
      • 2.Sc3#
    • 1...Qa4
      • 2.Sc3#
    • 1...Qb5
      • 2.Sc3#
    • 1...Qc5
      • 2.Sc3#
    • 1...Qxe5
      • 2.Qxe5#
    • 1...Qa6
      • 2.Sc3#
    • 1...Sf3
      • 2.exf3#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Rd4#
      • 1...Qxg5+
        • 2.Sxg5#
      • 1...Sxf3
        • 2.exf3#
      • 1...Qd2
        • 2.Qe5#
      • 1...Qc3
        • 2.Sxc3#
      • 1...Qc5
        • 2.Sc3#
      • 1...Qd5
        • 2.Sc3#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bd5
        • 2.Qe5#
      • 1...S4f5
        • 2.Qxf4#
      • 1...S6f5
        • 2.Qxf4#
      • 1...b5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 6
  • Sets
    • Q(g);N_GUARD::S(A),XQ(g)
    • Q(g);N_GUARD::S(A)
    • Q(g);OGATE,P_PINQ(G),XS(F)::QAR1(G),XQ(g)
    • S(f);OGATE::P(D),XS(f)
  • Actual
    • S(F);P_PINP(k),P_SPINQ(G)
    • Threat
      • R1(I)
    • Vars
      • Q(g);CHECK,XQ(G)::S(F),XQ(g)
      • S(f);OGATE,XS(F)::P(D),XS(f)
      • Q(g);N_GUARD,N_PINQ(G)::QAR1(G)
      • Q(g);N_GUARD,N_PINQ(G)::S(A),XQ(g)
      • Q(g);N_GUARD::S(A)
      • Q(g);N_GUARD,N_SPINP(k)::QAR1(G),XQ(g)
      • B(m);N_PINQ(G),S_CUTQ(g)::QAR1(G)
      • S(f);N_PINQ(G)::QAR1(G),XP(e)
      • S(i);N_PINQ(G)::QAR1(G),XP(e)
      • P(h);N_PINQ(G),S_CUTQ(g)::QAR1(G)
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