MESON Chess Problem Database

Problem Display
PID: 273402 (6QB/3pp3/N3r3/2Pk4/3N3p/3B2bK/8/8 w - - 0 1)

Authier, Gabriel

Probleemblad, 1952

6QB/3pp3/N3r3/2Pk4/3N3p/3B2bK/8/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qa8#
    • 1...d6
      • 2.Qxe6#
      • 2.Qa8#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Scb4#
      • 1...Kc6
        • 2.Qa8#
      • 1...Be5
        • 2.Qg2#
      • 1...Be1!
    • 1.Sb3?
      • threat
        • 2.Sb4#
      • 1...Kc6
        • 2.Qa8#
      • 1...Be1!
    • 1.Sc6?
      • threat
        • 2.Scb4#
        • 2.Sxe7#
      • 1...Kxc6
        • 2.Qa8#
      • 1...Be1
        • 2.Sxe7#
      • 1...Be5
        • 2.Qg2#
      • 1...Bd6
        • 2.Scb4#
      • 1...dxc6!
    • 1.Sxe6?
      • threat
        • 2.Sb4#
      • 1...Kc6
        • 2.Sd8#
        • 2.Qa8#
      • 1...dxe6
        • 2.Qa8#
      • 1...Be1!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sxe7#
      • 1...Kc6
        • 2.Qa8#
      • 1...Be5
        • 2.Qg2#
      • 1...Bd6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);::QAB(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • K(c);N_SPINR(d),S_CUTR(d),S_FLIGHT::QAB(F)
        • B(a);OGATE::QAB(F)
      • Refutation
        • B(a);
    • Try
      • S(C);
      • Threat
        • S(E)
      • Vars
        • K(c);N_SPINR(d),S_CUTR(d),S_FLIGHT::QAB(F)
      • Refutation
        • B(a);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINR(d),OGATEB,S_FLIGHT,XS(C)::QAB(F)
        • B(a);::S(C),XP(f)
        • B(a);OGATE::QAB(F)
        • B(a);::S(C)
      • Refutation
        • P(e);XS(C)
    • Try
      • S(C);XR(d)
      • Threat
        • S(E)
      • Vars
        • P(e);P_SPINP(e),SBLOCK,XS(C)::QAB(F)
      • Refutation
        • B(a);
  • Actual
    • S(C);
    • Threat
      • S(C),XP(f)
    • Vars
      • K(c);N_SPINR(d),S_CUTR(d),S_FLIGHT::QAB(F)
      • B(a);OGATE::QAB(F)
      • B(a);::QAB(F)
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