MESON Chess Problem Database

Problem Display
PID: 119965 (7B/6q1/3p1P2/3Bk3/4P1p1/6P1/3p1Q2/3K4 w - - 0 1)

von Wardener, Friedrich Freiherr

Deutsche Schachzeitung, 1900

7B/6q1/3p1P2/3Bk3/4P1p1/6P1/3p1Q2/3K4

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6
      • 2.Bxf6#
      • 2.Qxf6#
    • 1...Qa7
      • 2.f7#
    • 1...Qb7
      • 2.f7#
    • 1...Qc7
      • 2.f7#
    • 1...Qd7
      • 2.f7#
    • 1...Qe7
      • 2.fxe7#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qc3#
      • 1...Qa7
        • 2.f7#
      • 1...Qc7
        • 2.f7#
      • 1...Kxf6!
    • 1.Qb6?
      • threat
        • 2.Qb2#
      • 1...Qa7
        • 2.f7#
      • 1...Qb7
        • 2.f7#
      • 1...Qc7
        • 2.f7#
      • 1...Kxf6!
    • 1.Qxd2?
      • threat
        • 2.Qc3#
        • 2.Qb2#
      • 1...Qa7
        • 2.f7#
      • 1...Qb7
        • 2.Qc3#
        • 2.f7#
      • 1...Qc7
        • 2.f7#
      • 1...Kxf6!
    • 1.f7?
      • threat
        • 2.Bxg7#
      • 1...Qf6
        • 2.Bxf6#
        • 2.Qxf6#
      • 1...Qxh8!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qa1#
      • 1...Kxf6
        • 2.Qxg7#
      • 1...Qxa7
        • 2.f7#
      • 1...Qb7
        • 2.f7#
      • 1...Qc7
        • 2.f7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(e);::B(G)+P(F)
    • Q(e);OGATE::B(G)+P(F),XQ(e)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • Q(e);::B(G)+P(F)
      • Refutation
        • K(c);P_SPINQ(e),S_FLIGHT,XP(F)
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • Q(e);::B(G)+P(F)
      • Refutation
        • K(c);P_SPINP(d),P_SPINQ(e),S_FLIGHT,XP(F)
    • Try
      • Q(B);XP(a)
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);::B(G)+P(F)
      • Refutation
        • K(c);P_SPINQ(e),S_FLIGHT,XP(F)
    • Try
      • P(F);P_PINQ(e)
      • Threat
        • B(G),XQ(e)
      • Refutation
        • Q(e);N_SPINQ(e),XB(G)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • K(c);OGATEB,P_SPINQ(e),S_FLIGHT,XP(F)::QAB1(B),XQ(e)
      • Q(e);XQ(B)::B(G)+P(F)
      • Q(e);::B(G)+P(F)
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