MESON Chess Problem Database

Problem Display
PID: 74922 (b4r2/R6p/1qpN1p1K/7B/1PNB1k2/6pn/5pP1/5rbR w - - 0 1)

Golha, Jan

2nd HM., Mat 64, 2001

b4r2/R6p/1qpN1p1K/7B/1PNB1k2/6pn/5pP1/5rbR

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Be3#
    • 1...Qc7
      • 2.Be3#
    • 1...Qd8
      • 2.Be3#
    • 1...Qxb4
      • 2.Be3#
    • 1...Qb5
      • 2.Be3#
    • 1...Qa6
      • 2.Be3#
    • 1...Qb7
      • 2.Be3#
    • 1...Qb8
      • 2.Be3#
    • 1...Sg5
      • 2.Rh4#
    • 1...c5
      • 2.Be3#
    • 1...f5
      • 2.Be5#
  • Tries
    • 1.Ra5?
      • threat
        • 2.Rf5#
      • 1...Qxa5
        • 2.Be3#
      • 1...Qb5
        • 2.Be3#
      • 1...c5
        • 2.Be3#
      • 1...f5
        • 2.Be5#
      • 1...Qc5!
    • 1.Rg7?
      • threat
        • 2.Rg4#
      • 1...Sg5
        • 2.Rh4#
      • 1...f5
        • 2.Be5#
      • 1...Rg8!
  • Keys
    • 1.Ra3!
      • threat
        • 2.Rf3#
      • 1...Sg5
        • 2.Rh4#
      • 1...c5
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • Q(g);N_GUARD::B(E)
    • Q(g);N_GUARD,XP(C)::B(E)
    • S(e);OGATE::R(A)
    • P(h);S_CUTQ(g)::B(E)
    • P(i);N_GUARD::B(E)
  • Tries
    • Try
      • R(I);
      • Threat
        • R1(I)
      • Vars
        • Q(g);N_GUARD,XR(I)::B(E)
        • Q(g);N_GUARD::B(E)
        • P(h);S_CUTQ(g)::B(E)
        • P(i);N_GUARD::B(E)
      • Refutation
        • Q(g);
    • Try
      • R(I);
      • Threat
        • R1(I)
      • Vars
        • S(e);OGATE::R(A)
        • P(i);N_GUARD::B(E)
      • Refutation
        • R(l);
  • Actual
    • R(I);
    • Threat
      • R1(I)
    • Vars
      • S(e);OGATE::R(A)
      • P(h);S_CUTQ(g)::B(E)
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