MESON Chess Problem Database

Problem Display
PID: 138176 (r1n1r3/2N5/1p1n4/2kP3R/2p5/7Q/2N1p2K/7b w - - 0 1)

Fanelli, Bruno

Due Alfieri, 1982

r1n1r3/2N5/1p1n4/2kP3R/2p5/7Q/2N1p2K/7b

#2

6 + 9

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Qxa3#
    • 1...Rb8
      • 2.Qa3#
    • 1...Re3
      • 2.Qxe3#
    • 1...Rd8
      • 2.Qe3#
    • 1...Rf8
      • 2.Qe3#
    • 1...Rg8
      • 2.Qe3#
    • 1...Rh8
      • 2.Qe3#
    • 1...Be4
      • 2.Qe3#
    • 1...Sa7
      • 2.Qa3#
    • 1...Se7
      • 2.Qe3#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qb4#
        • 2.Qd4#
      • 1...Se4
        • 2.Qb4#
      • 1...Sb5
        • 2.Qb4#
      • 1...Sf5
        • 2.Qb4#
      • 1...Sb7
        • 2.Qb4#
      • 1...Sf7
        • 2.Qb4#
      • 1...b5
        • 2.Qd4#
      • 1...e1Q
        • 2.Qd4#
      • 1...e1B
        • 2.Qd4#
      • 1...Ra4
        • 2.Qd4#
      • 1...Re4
        • 2.Qb4#
      • 1...Bxd5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qc6#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...Sa7
        • 2.Sa6#
      • 1...Se7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(g);N_GUARD::QAB(C),XR(g)
    • R(g);N_GUARD::QAB(C)
    • R(i);N_GUARD::QAB(C),XR(i)
    • R(i);N_GUARD::QAB(C)
    • B(a);S_CUTR(i)::QAB(C)
    • S(h);S_CUTR(g)::QAB(C)
    • S(h);S_CUTR(i)::QAB(C)
  • Tries
    • Try
      • Q(C);P_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::QAB1(C)
        • P(e);::QAB1(C)
        • P(b);::QAB1(C)
        • R(g);::QAB1(C)
        • R(i);::QAB1(C)
      • Refutation
        • B(a);P_SPINB(a),XP(D)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • B(a);OGATE,P_SPINB(a),XP(D)::R1(E),XB(a)
      • S(h);S_CUTR(g)::S(F)
      • S(h);S_CUTR(i)::S(F)
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