MESON Chess Problem Database

Problem Display
PID: 145769 (8/bp3B2/4p2Q/R1pNk3/3Npp2/8/4b3/6K1 w - - 0 1)

Betts, Frederick Charles

Good Companions (November), 1917

8/bp3B2/4p2Q/R1pNk3/3Npp2/8/4b3/6K1

#2

6 + 8

15351 SCPF/BCPS Black Books 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qxe6#
    • 1...cxd4
      • 2.Qxf4#
      • 2.Qxe6#
  • Tries
    • 1.Sxe2?
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qxe6#
      • 1...Kf5
        • 2.Qxf4#
        • 2.Qh5#
      • 1...Kd6
        • 2.Qxe6#
      • 1...exd5
        • 2.Qxf4#
        • 2.Qe6#
      • 1...c4+!
    • 1.Sc6+?
      • 1...Kxd5
        • 2.Qxe6#
      • 1...Kf5
        • 2.Bxe6#
        • 2.Qxf4#
        • 2.Qg6#
      • 1...Kd6
        • 2.Qxe6#
      • 1...bxc6!
    • 1.Qf6+?
      • 1...Kd6
        • 2.Qxe6#
      • 1...Kxd5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qxe6#
      • 1...c4+
        • 2.Sb6#
      • 1...Kxd5
        • 2.Qxe6#
      • 1...Kxf5
        • 2.Qxf4#
      • 1...exd5
        • 2.Qe6#
      • 1...exf5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(e);P_SPINP(f),S_FLIGHT::QAR1(E),XP(f)
  • Tries
    • Try
      • S(B);XB(a)
      • Threat
        • QAR1(E),XP(f)
      • Vars
        • K(e);P-FLIGHT,P_SPINP(d),XS(D)::QAB1(E),XP(f)
        • K(e);P_SPINP(f),S_FLIGHT::QAR1(E),XP(f)
      • Refutation
        • P(d);CHECK
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(d),XS(D)::QAB1(E),XP(f)
        • K(e);P_SPINP(f),S_FLIGHT::QAR1(E),XP(f)
      • Refutation
        • P(h);XS(B)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P_SPINP(f),S_FLIGHT::QAR1(E),XP(f)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(d),XS(D)
  • Actual
    • S(B);
    • Threat
      • QAR1(E),XP(f)
    • Vars
      • P(d);CHECK::R(C)+S(D)
      • K(e);P-FLIGHT,P_SPINP(d),XS(D)::QAB1(E),XP(f)
      • K(e);P-FLIGHT,XS(B)::QAR1(E),XP(c)
      • P(f);XS(D)::QAR1(E)
      • P(f);XS(B)::QAB1(E)
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