MESON Chess Problem Database

Problem Display
PID: 7752 (8/3pp3/8/1K3Q2/3k3B/3N4/6n1/1N6 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1993

8/3pp3/8/1K3Q2/3k3B/3N4/6n1/1N6

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Bf2#
    • 1...Sf4
      • 2.Bf2#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Qe4#
        • 2.Qc5#
      • 1...Ke3
        • 2.Qe4#
      • 1...e5
        • 2.Qd3#
        • 2.Qe4#
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Sb4?
      • threat
        • 2.Sc2#
      • 1...Se1
        • 2.Bf2#
        • 2.Qf4#
      • 1...Se3
        • 2.Qf4#
      • 1...e5
        • 2.Qd3#
      • 1...Ke3!
    • 1.Sc5?
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Qe4#
        • 2.Qf2#
      • 1...d5!
  • Keys
    • 1.Se1!
      • threat
        • 2.Sc2#
      • 1...Ke3
        • 2.Qe5#
      • 1...Sxe1
        • 2.Bf2#
      • 1...e5
        • 2.Qd3#
      • 1...Se3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::B(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
        • P(c);::QAR1(E)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(a);N_GUARD::QAR2(E)
        • P(d);SBLOCK::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Threat
        • QAR1(E)
      • Refutation
        • P(c);
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(b);S_FLIGHT::QAR2(E)
      • S(a);N_GUARD,XS(B)::B(C)
      • P(d);SBLOCK::QAR1(E)
      • S(a);SBLOCK::S(B)
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