MESON Chess Problem Database

Problem Display
PID: 55988 (8/8/2p2B1K/5p1Q/1pP1k3/1P2P1P1/3p3P/3Nn1Nn w - - 0 1)

Slagmolen, Cornelis

6th Comm., Larsen (Lars)-85 JT, 2002-2003

8/8/2p2B1K/5p1Q/1pP1k3/1P2P1P1/3p3P/3Nn1Nn

#2

10 + 7

102 Probleemblad 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qxf5#
    • 1...Sd3
      • 2.Qf3#
    • 1...f4
      • 2.Qg6#
  • Tries
    • 1.Kg6?
      • threat
        • 2.Qxf5#
      • 1...Kd3
        • 2.Qxf5#
      • 1...f4
        • 2.Qf5#
      • 1...Sxg3!
    • 1.Sf2+?
      • 1...Kxe3
        • 2.Qe2#
      • 1...Sxf2!
    • 1.Qf3+?
      • 1...Kd3
        • 2.Qxf5#
      • 1...Sxf3!
    • 1.Qg4+?
      • 1...Kd3
        • 2.Qxf5#
      • 1...f4
        • 2.Qg6#
      • 1...fxg4!
    • 1.g4?
      • threat
        • 2.Qxf5#
      • 1...Kd3
        • 2.Qxf5#
      • 1...fxg4
        • 2.Qg6#
      • 1...f4
        • 2.Qg6#
        • 2.Qf5#
      • 1...Sg3!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Qe8#
      • 1...Kxe3
        • 2.Qe2#
      • 1...Sd3
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...f4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(e);S_FLIGHT::QAB(H),XP(f)
    • S(a);N_GUARD,SBLOCK::QAB1(H)
    • P(f);OGATEB::QAB(H)
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Threat
        • QAB1(H),XP(f)
      • Vars
        • K(e);S_FLIGHT::QAB(H),XP(f)
        • P(f);::QAB1(H)
      • Refutation
        • S(b);XP(F)
    • Try
      • S(A);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(E)::QAR1(H)
      • Refutation
        • S(b);XS(A)
    • Try
      • Q(H);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB(H),XP(f)
      • Refutation
        • S(a);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB(H),XP(f)
        • P(f);OGATEB,P_SPINP(f)::QAB(H)
      • Refutation
        • P(f);XQ(H)
    • Try
      • P(F);
      • Threat
        • QAB1(H),XP(f)
      • Vars
        • K(e);S_FLIGHT::QAB(H),XP(f)
        • P(f);OGATEB,XP(F)::QAB(H)
      • Refutation
        • S(b);
  • Actual
    • S(A);
    • Threat
      • QAR(H)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XP(E)::QAR1(H)
      • S(a);N_GUARD::QAB1(H)
      • S(a);N_GUARD::QAB1(H),XS(a)
      • P(f);OGATE::QAR1(H)
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