MESON Chess Problem Database

Problem Display
PID: 144815 (7Q/3p1K1p/1p1p4/1NbkN3/Pp6/5P2/5n2/2R5 w - - 0 1)

Mazul, Waldemar

StrateGems, 1998

7Q/3p1K1p/1p1p4/1NbkN3/Pp6/5P2/5n2/2R5

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Sc7#
    • 1...dxe5
      • 2.Qa8#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qa8#
      • 1...Kc6
        • 2.Qa8#
      • 1...Sxd3!
    • 1.Sc4?
      • threat
        • 2.Qa8#
      • 1...Kc6
        • 2.Qa8#
      • 1...Be3
        • 2.Sxe3#
      • 1...Bd4!
    • 1.Sg4?
      • threat
        • 2.Qa8#
      • 1...Kc6
        • 2.Qa8#
      • 1...Sxg4!
    • 1.Sg6?
      • threat
        • 2.Se7#
        • 2.Qa8#
      • 1...Kc6
        • 2.Qa8#
      • 1...hxg6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Qa8#
      • 1...dxc6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(c);SBLOCK::S(D)
    • P(f);SBLOCK,XS(E)::QAB(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB(G)
      • Vars
        • K(d);P_SPINB(c),S_FLIGHT::QAB(G)
      • Refutation
        • S(a);XS(E)
    • Try
      • S(E);
      • Threat
        • QAB(G)
      • Vars
        • K(d);S_FLIGHT::QAB(G)
        • B(c);N_GUARD::S(E),XB(c)
      • Refutation
        • B(c);
    • Try
      • S(E);
      • Threat
        • QAB(G)
      • Vars
        • K(d);P_SPINB(c),S_FLIGHT::QAB(G)
      • Refutation
        • S(a);XS(E)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);P_SPINB(c),S_FLIGHT::QAB(G)
      • Refutation
        • P(h);XS(E)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);OGATEB,P_SPINB(c),S_FLIGHT,XS(E)::QAB(G)
      • P(g);SBLOCK,XS(E)::S(D)
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