MESON Chess Problem Database

Problem Display
PID: 16989 (8/1N3p2/BK6/3k4/b1Nn2Q1/7p/8/6Bq w - - 0 1)

Hassberg, Eric Manfred

Chess, 1945

8/1N3p2/BK6/3k4/b1Nn2Q1/7p/8/6Bq

#2

6 + 6

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Qf5#
    • 1...Se2
      • 2.Qf5#
    • 1...Sb3
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Se6
      • 2.Qf5#
  • Tries
    • 1.Qg5+?
      • 1...Ke4
        • 2.Sd2#
      • 1...Ke6
        • 2.Sc5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...f5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qxd4#
      • 1...Qxg1
        • 2.Qe4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Sc2
        • 2.Qf5#
      • 1...Se2
        • 2.Qf5#
      • 1...Sb3
        • 2.Qf5#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sb5
        • 2.Bb7#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sc6
        • 2.Qd7#
      • 1...Se6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAR2(C)
    • S(d);N_GUARD::QAR2(C),XS(d)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);S_FLIGHT::S(B)
        • K(e);S_FLIGHT::S(F)
        • S(d);N_GUARD,P_SPINS(d)::QAR2(C),XS(d)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • S(F);
    • Threat
      • QAR1(C),XS(d)
    • Vars
      • Q(a);N_GUARD,XB(A)::QAB1(C)
      • Q(a);N_GUARD::QAB1(C),XQ(a)
      • S(d);N_GUARD::QAR2(C)
      • S(d);S_CUTQ(a)::QAB1(C)
      • S(d);N_GUARD,S_CUTB(c)::B(D)
      • S(d);N_GUARD::QAR2(C),XS(d)
      • S(d);S_CUTB(c)::QAR2(C)
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