MESON Chess Problem Database

Problem Display
PID: 48443 (8/3pN3/5K2/2P1p1Q1/1B1kb3/pp3p2/2nNPp2/bqR5 w - - 0 1)

Stoyanov, Kiril N

1st HM., Het Belgisch Schaakbord (L'Echiquier Belge), 1976-1977

8/3pN3/5K2/2P1p1Q1/1B1kb3/pp3p2/2nNPp2/bqR5

#2

8 + 11

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qxe5#
    • 1...Bd5
      • 2.Sf5#
      • 2.Qxe5#
    • 1...Bc6
      • 2.Qxe5#
    • 1...Bg6
      • 2.Qxe5#
    • 1...Bb7
      • 2.Qxe5#
    • 1...Bh7
      • 2.Qxe5#
    • 1...Ba8
      • 2.Qxe5#
    • 1...Se1
      • 2.Rc4#
    • 1...Se3
      • 2.Qxe5#
    • 1...Sxb4
      • 2.Rc4#
    • 1...d5
      • 2.Sc6#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qxe4#
      • 1...Sxb4
        • 2.Sxf3#
        • 2.Rc4#
      • 1...Se1
        • 2.Rc4#
      • 1...Se3
        • 2.Sxf3#
        • 2.Qxe5#
      • 1...d5
        • 2.Sf5#
        • 2.Sc6#
      • 1...exf4!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qxe4#
      • 1...Ke3
        • 2.Qxe4#
      • 1...Sxb4
        • 2.Qxf2#
      • 1...Se1
        • 2.Qxf2#
      • 1...Se3
        • 2.Sxf3#
      • 1...d5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(i);::QAB1(F),XP(j)
    • S(c);OGATE::R1(A)
    • S(c);SBLOCK::QAB1(F),XP(j)
    • S(c);OGATE,XB(D)::R1(A)
    • P(k);N_GUARD,SBLOCK,S_CUTB(i)::S(H)
  • Tries
    • Try
      • Q(F);P_PINB(i)
      • Threat
        • QAR1(F),XB(i)
      • Vars
        • S(c);OGATE::R1(A)
      • Refutation
        • P(j);N_SPINB(i),XQ(F)
  • Actual
    • Q(F);P_PINB(i)
    • Threat
      • QAR1(F),XB(i)
    • Vars
      • K(h);N_SPINB(i),S_FLIGHT::QAR1(F),XB(i)
      • S(c);N_GUARD,XB(D)::QAB(F),XP(d)
      • S(c);N_GUARD::QAB(F),XP(d)
      • S(c);SBLOCK::S(B),XP(g)
      • P(k);SBLOCK::S(H)
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