MESON Chess Problem Database

Problem Display
PID: 17635 (n3B3/QN1qp3/p1k1N2R/8/1pppP3/6pK/5rp1/6b1 w - - 0 1)

Mansfield, Comins

7th HM., Echec et Mat, 1948-1949

n3B3/QN1qp3/p1k1N2R/8/1pppP3/6pK/5rp1/6b1

#2

7 + 12

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Bxd7#
  • Tries
    • 1.Sa5+?
      • 1...Kd6
        • 2.Qxd4#
        • 2.Qc5#
      • 1...Kb5!
    • 1.Sd8+?
      • 1...Kd6
        • 2.Qxd4#
        • 2.Qc5#
      • 1...Kb5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qc5#
      • 1...Kxd6
        • 2.Qc5#
      • 1...Qxe8
        • 2.Sxd4#
      • 1...exd6
        • 2.Bxd7#
      • 1...Rf5
        • 2.Sd8#
      • 1...Sb6
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(i);S_FLIGHT::B(G),XQ(j)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(i);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(i);S_FLIGHT
  • Actual
    • S(F);
    • Threat
      • QAR1(E)
    • Vars
      • K(i);N_SPINQ(j),P-FLIGHT,XS(F)::QAB1(E)
      • Q(j);N_PINS(C),N_SPINQ(j),XB(G)::S(C),XP(g)
      • P(k);SBLOCK,XS(F)::B(G),XQ(j)
      • R(b);N_PINS(C)::S(C)
      • S(l);N_GUARD::QAR1(E)
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