MESON Chess Problem Database

Problem Display
PID: 7123 (6KR/2p3p1/1pNkP3/1PR5/2B1p3/B7/6P1/1b4q1 w - - 0 1)

Righi, Mario

L'Italia Scacchistica, 1998

6KR/2p3p1/1pNkP3/1PR5/2B1p3/B7/6P1/1b4q1

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rch5#
    • 1...Qd1
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rch5#
    • 1...Qf1
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rch5#
    • 1...Qh1
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rch5#
    • 1...Qxg2
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rch5#
    • 1...e3
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rch5#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Rd5#
        • 2.Rd8#
      • 1...Qf1+
        • 2.Rf5#
      • 1...Qxc5
        • 2.Rd8#
      • 1...bxc5
        • 2.Rd8#
      • 1...Qf2+!
    • 1.Kxg7?
      • threat
        • 2.Rd8#
      • 1...Qxg2+
        • 2.Rg5#
      • 1...Qd4+!
  • Keys
    • 1.Kh7!
      • threat
        • 2.Rd8#
      • 1...Qh2+
        • 2.Rh5#
      • 1...Qh1+
        • 2.Rh5#
      • 1...e3+
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);CHECK,N_GUARD::B(B)+R(E)
        • Q(b);P_SPINQ(b),XR(E)::R(I)
        • P(d);P_SPINP(d),XR(E)::R(I)
      • Refutation
        • Q(b);CHECK
    • Try
      • K(H);P-FLIGHT,P_SPINP(A),XP(g)
      • Threat
        • R(I)
      • Vars
        • Q(b);CHECK,N_GUARD,XP(A)::B(B)+R(E)
      • Refutation
        • Q(b);CHECK,N_PINP(A)
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • R(I)
    • Vars
      • Q(b);CHECK,N_GUARD::B(B)+R(E)
      • P(c);CHECK,S_CUTQ(b)::B(B)+R(E)
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