MESON Chess Problem Database

Problem Display
PID: 145928 (8/1p2n3/5q2/1Q3Np1/4k3/3pPpB1/3R1K2/2n2b2 w - - 0 1)

Bennett, Frederick

Chess, 1955

8/1p2n3/5q2/1Q3Np1/4k3/3pPpB1/3R1K2/2n2b2

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sd6#
    • 1...Qb2
      • 2.Sd6#
    • 1...Qc3
      • 2.Sd6#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qg7
      • 2.Sd6#
    • 1...Qh8
      • 2.Sd6#
    • 1...Qxf5
      • 2.Qc4#
    • 1...Qa6
      • 2.Qe5#
    • 1...Qb6
      • 2.Qe5#
    • 1...Qc6
      • 2.Qe5#
    • 1...Qd6
      • 2.Sxd6#
    • 1...Qg6
      • 2.Qe5#
    • 1...Qh6
      • 2.Qe5#
    • 1...Qf7
      • 2.Sd6#
      • 2.Qe5#
    • 1...Qf8
      • 2.Sd6#
      • 2.Qe5#
    • 1...Se2
      • 2.Qxd3#
  • Tries
    • 1.Bc7?
      • threat
        • 2.Sg3#
      • 1...Qxf5
        • 2.Qc4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qd6
        • 2.Sxd6#
      • 1...Se2
        • 2.Qxd3#
      • 1...Sxf5!
    • 1.Bb8?
      • threat
        • 2.Sg3#
      • 1...Qxf5
        • 2.Qc4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qd6
        • 2.Sxd6#
      • 1...Se2
        • 2.Qxd3#
      • 1...Sxf5!
    • 1.Qc4+?
      • 1...Qd4
        • 2.Sd6#
      • 1...Kxf5!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Sg3#
      • 1...Qxf5
        • 2.Qc4#
      • 1...Qxd6
        • 2.Sxd6#
      • 1...Sxf5
        • 2.Qxb7#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Se2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(g);N_GUARD::S(F)
    • Q(g);N_GUARD,P_PINR(A)::S(F)
    • Q(g);N_GUARD::QAR1(E),XQ(g)
    • Q(g);N_GUARD,SBLOCK,XS(F)::QAR2(E)
    • Q(g);N_GUARD::QAR1(E)
    • Q(g);N_GUARD,P_PINP(C)::QAR1(E)
    • Q(g);N_GUARD::S(F),XQ(g)
    • S(a);N_GUARD,S_CUTB(b)::QAB1(E),XP(c)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(F)
      • Vars
        • Q(g);N_GUARD,SBLOCK,XS(F)::QAR2(E)
        • Q(g);N_GUARD::QAR1(E),XQ(g)
        • Q(g);N_GUARD::S(F),XQ(g)
        • S(a);N_GUARD,S_CUTB(b)::QAB1(E),XP(c)
      • Refutation
        • S(i);XS(F)
    • Try
      • B(D);
      • Threat
        • S(F)
      • Vars
        • Q(g);N_GUARD,SBLOCK,XS(F)::QAR2(E)
        • Q(g);N_GUARD::QAR1(E),XQ(g)
        • Q(g);N_GUARD::S(F),XQ(g)
        • S(a);N_GUARD,S_CUTB(b)::QAB1(E),XP(c)
      • Refutation
        • S(i);XS(F)
    • Try
      • Q(E);CHECK
      • Vars
        • Q(g);P_PINP(C),P_SPINQ(g)::S(F)
      • Refutation
        • K(e);S_FLIGHT,XS(F)
  • Actual
    • B(D);
    • Threat
      • S(F)
    • Vars
      • Q(g);N_GUARD,SBLOCK,XS(F)::QAR2(E)
      • Q(g);XB(D)::S(F),XQ(g)
      • S(i);N_GUARD,SBLOCK,XS(F)::QAB(E),XP(h)
      • Q(g);N_GUARD::QAR1(E),XQ(g)
      • S(a);N_GUARD,S_CUTB(b)::QAB1(E),XP(c)
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