MESON Chess Problem Database

Problem Display
PID: 74906 (2RN3Q/3p4/1p2bK2/3pp3/3kPpP1/2N5/B1P1PP1b/8 w - - 0 1)

Golha, Jan

Hlas l'udu, 1978

2RN3Q/3p4/1p2bK2/3pp3/3kPpP1/2N5/B1P1PP1b/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.e3#
    • 1...dxe4
      • 2.Sb5#
    • 1...d6
      • 2.Sxe6#
  • Tries
    • 1.Bxd5?
      • threat
        • 2.Sb5#
        • 2.Rc4#
      • 1...b5
        • 2.Sxb5#
      • 1...Bxd5!
    • 1.Qh3?
      • threat
        • 2.Qd3#
      • 1...dxe4
        • 2.Sb5#
      • 1...f3
        • 2.e3#
      • 1...Bg3!
    • 1.Qh5?
      • threat
        • 2.Qxe5#
      • 1...f3
        • 2.e3#
      • 1...d6
        • 2.Sxe6#
      • 1...Bf5!
    • 1.Qh7?
      • threat
        • 2.Sb5#
      • 1...b5
        • 2.Sxb5#
      • 1...Bf5!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qb4#
      • 1...dxe4
        • 2.Sb5#
      • 1...d6
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::P(C)
    • P(d);SBLOCK,XP(F)::S(E)
    • P(h);N_GUARD::S(J),XB(g)
  • Tries
    • Try
      • B(A);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::S(E),XP(f)
      • Refutation
        • B(g);XB(A)
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • P(d);SBLOCK,XP(F)::S(E)
        • P(c);N_GUARD::P(C)
      • Refutation
        • B(a);
    • Try
      • Q(K);
      • Threat
        • QAB1(K),XP(e)
      • Vars
        • P(c);N_GUARD::P(C)
        • P(h);N_GUARD::S(J),XB(g)
      • Refutation
        • B(g);
    • Try
      • Q(K);
      • Threat
        • S(E)
      • Vars
        • P(f);::S(E),XP(f)
      • Refutation
        • B(g);
  • Actual
    • Q(K);
    • Threat
      • QAR2(K)
    • Vars
      • P(d);SBLOCK,XP(F)::S(E)
      • P(h);N_GUARD::S(J),XB(g)
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