MESON Chess Problem Database

Problem Display
PID: 198521 (6Q1/3ppp1p/q6P/2PpBkN1/p2Pp2P/5P2/2B1P3/2K5 w - - 0 1)

Dame, Pierre

3rd Comm., Gevers MT, 1983

6Q1/3ppp1p/q6P/2PpBkN1/p2Pp2P/5P2/2B1P3/2K5

#2

11 + 9

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qd3
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qc4
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qb5
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qb7
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qc8
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qa5
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qa7
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...Qa8
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...d6
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...e6
      • 2.Qxf7#
      • 2.Qxh7#
    • 1...f6
      • 2.Qxh7#
  • Tries
    • 1.Se6?
      • threat
        • 2.Qxf7#
        • 2.Qg4#
      • 1...Qxe6
        • 2.Qg4#
        • 2.Qg5#
      • 1...fxe6
        • 2.Qf7#
        • 2.Qxh7#
        • 2.Qg4#
        • 2.Qg5#
      • 1...f6
        • 2.Qg4#
      • 1...Kxe6!
    • 1.Sxf7?
      • threat
        • 2.Qg4#
      • 1...Qxh6+
        • 2.Sxh6#
      • 1...Ke6
        • 2.Sd6#
      • 1...Qg6!
    • 1.Bd6?
      • threat
        • 2.Qxf7#
      • 1...Kf6
        • 2.Qxf7#
      • 1...f6
        • 2.Qxh7#
      • 1...Qxd6!
    • 1.c6?
      • threat
        • 2.Qxf7#
        • 2.Qxh7#
      • 1...f6
        • 2.Qxh7#
      • 1...Qxc6!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Qg4#
      • 1...Qxh6+
        • 2.Sg5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Qg6
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(h);S_CUTQ(e)::QAB(K),XP(i)
  • Tries
    • Try
      • S(I);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::QAB1(K)
      • Refutation
        • K(d);N_SPINP(b),P_SPINP(h),S_FLIGHT,XS(I)
    • Try
      • S(I);XP(h)
      • Threat
        • QAB1(K)
      • Vars
        • Q(e);CHECK,XP(J)::S(I),XQ(e)
        • K(d);N_SPINP(b),S_FLIGHT::QAB(K)+S(I)
      • Refutation
        • Q(e);
    • Try
      • B(H);
      • Threat
        • QAR2(K),XP(h)
      • Vars
        • K(d);N_SPINP(b),P-FLIGHT::QAR1(K),XP(h)
        • P(h);SBLOCK::QAB(K),XP(i)
      • Refutation
        • Q(e);XB(H)
    • Try
      • P(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::QAB(K),XP(i)
      • Refutation
        • Q(e);P_PINB(B),XP(G)
  • Actual
    • S(I);XP(b)
    • Threat
      • QAB1(K)
    • Vars
      • Q(e);CHECK,N_GUARD,XP(J)::B(B)+S(I)
      • K(d);P_SPINP(h),S_FLIGHT::S(I)
      • Q(e);N_GUARD::B(B)+S(I)
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