MESON Chess Problem Database

Problem Display
PID: 151870 (4b3/nBPk2Pr/1P2Rp1r/7p/2N2N2/8/8/3K4 w - - 0 1)

Shire, David J

1st HM., Bournemouth, 2013

4b3/nBPk2Pr/1P2Rp1r/7p/2N2N2/8/8/3K4

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.c8Q#
    • 1...Sc6
      • 2.c8Q#
    • 1...Sc8
      • 2.Bc6#
    • 1...f5
      • 2.Se5#
  • Tries
    • 1.Bc6+?
      • 1...Kc8
        • 2.Sd6#
        • 2.Rxe8#
      • 1...Sxc6!
    • 1.g8Q?
      • threat
        • 2.Qxe8#
      • 1...Re7
        • 2.Rd6#
      • 1...Bg6
        • 2.Qd8#
      • 1...Bf7
        • 2.Qd8#
      • 1...Rh8!
  • Keys
    • 1.g8S!
      • threat
        • 2.Rd6#
      • 1...Bg6
        • 2.Sxf6#
      • 1...Bf7
        • 2.Re7#
      • 1...Sb5
        • 2.c8Q#
      • 1...Sc8
        • 2.Bc6#
      • 1...f5
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::P=Q
    • S(d);N_GUARD,SBLOCK::B(F)
    • P(b);N_GUARD::S(B)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • S(d);XB(F)
    • Try
      • P(H);
      • Threat
        • QAB1(H),XB(g)
      • Vars
        • R(f);SBLOCK::R1(E)
        • B(g);OGATE::QAR1(H)
      • Refutation
        • R(f);
  • Actual
    • P(H);
    • Threat
      • R1(E)
    • Vars
      • B(g);S_CUTR(c)::S(H),XP(b)
      • B(g);S_CUTR(f)::R1(E)
      • S(d);N_GUARD::P=Q
      • S(d);N_GUARD,SBLOCK::B(F)
      • P(b);N_GUARD::S(B)
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