MESON Chess Problem Database

Problem Display
PID: 102163 (5b2/2N2p2/4bP2/pPkP4/R1Np1p2/K7/4Q3/8 w - - 0 1)

Slagmolen, Cornelis

Het Reformatorisch Dagblad, 1990

5b2/2N2p2/4bP2/pPkP4/R1Np1p2/K7/4Q3/8

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qf2#
  • Tries
    • 1.Qxe6?
      • threat
        • 2.Qb6#
        • 2.Qc6#
      • 1...d3
        • 2.Qb6#
      • 1...Bd6
        • 2.Qxd6#
      • 1...fxe6!
    • 1.dxe6?
      • threat
        • 2.Qh5#
        • 2.Qe5#
      • 1...fxe6
        • 2.Qe5#
      • 1...d3
        • 2.Qf2#
        • 2.Qe5#
      • 1...Bh6
        • 2.Qe5#
      • 1...f3
        • 2.Qe5#
      • 1...Bd6!
  • Keys
    • 1.Qe5!
      • threat
        • 2.dxe6#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Bh3
        • 2.d6#
      • 1...Bg4
        • 2.d6#
      • 1...Bf5
        • 2.d6#
      • 1...Bd7
        • 2.d6#
      • 1...Bc8
        • 2.d6#
      • 1...Bd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(a);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);XB(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(A)
        • B(g);N_GUARD::QAB1(A),XB(g)
      • Refutation
        • P(f);XQ(A)
    • Try
      • P(F);XB(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);XP(F)::QAR2(A)
        • B(g);::QAR2(A)
        • P(b);::QAR2(A)
      • Refutation
        • B(g);
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+P(F),XB(e)
    • Vars
      • B(e);OGATE,P_SPINB(e),XP(F)::QAR1(A),XB(e)
      • B(e);N_GUARD::QAR(A)+P(F)
      • B(g);N_GUARD::QAB1(A),XB(g)
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