MESON Chess Problem Database

Problem Display
PID: 138012 (8/1p4K1/4k3/8/2PR1P1p/B2rN3/8/2Q5 w - - 0 1)

Agostini, Valerio

1st HM., Schach, 1982

8/1p4K1/4k3/8/2PR1P1p/B2rN3/8/2Q5

#2

7 + 4

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qb6#
      • 1...Rxa3
        • 2.Qe4#
      • 1...Rxe3
        • 2.Qg6#
      • 1...Rxd4
        • 2.Qf5#
      • 1...Rb3
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qg6#
      • 1...b6
        • 2.Qxb6#
      • 1...b5!
    • 1.Qd1?
      • threat
        • 2.Qg4#
      • 1...Rxa3
        • 2.Re4#
      • 1...Rxd1!
    • 1.Qg1?
      • threat
        • 2.Qg4#
        • 2.Qg6#
      • 1...Rxd4
        • 2.Qg4#
      • 1...Rxa3!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qe4#
        • 2.Qd5#
        • 2.Qh3#
      • 1...Rxa3
        • 2.Qe4#
      • 1...Rxe3
        • 2.Qd5#
      • 1...Rxd4
        • 2.Qh3#
      • 1...h3
        • 2.Qe4#
        • 2.Qd5#
        • 2.Qxh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • R(a);OGATE,XB(B)::QAR2(A)
        • R(a);OGATE,XS(C)::QAR2(A)
        • R(a);OGATE,XR(E)::QAB1(A)
        • P(d);::QAR(A),XP(d)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • R(a);XB(B)::R(E)
      • Refutation
        • R(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XR(E)::QAB(A)
      • Refutation
        • R(a);XB(B)
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • R(a);XB(B)::QAR2(A)
      • R(a);XS(C)::QAB1(A)
      • R(a);XR(E)::QAB(A)
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