MESON Chess Problem Database

Problem Display
PID: 138343 (8/2R5/6R1/1N1k1n2/r2pnK2/1Pb1p3/2N4p/3Q4 w - - 0 1)

Preziosi, Bruno

3rd HM., Il Due Mosse, 1958

8/2R5/6R1/1N1k1n2/r2pnK2/1Pb1p3/2N4p/3Q4

#2

7 + 8

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.bxc4#
    • 1...Sf2
      • 2.Sxc3#
    • 1...Seg3
      • 2.Sxc3#
    • 1...Sc5
      • 2.Sxc3#
    • 1...Sg5
      • 2.Sxc3#
    • 1...Sed6
      • 2.Sxc3#
    • 1...Sfg3
      • 2.Sxe3#
    • 1...Sh4
      • 2.Sxe3#
    • 1...Sfd6
      • 2.Sxe3#
    • 1...Sh6
      • 2.Sxe3#
    • 1...Se7
      • 2.Sxe3#
    • 1...Sg7
      • 2.Sxe3#
  • Tries
    • 1.Rc5+?
      • 1...Sxc5
        • 2.Sxc3#
        • 2.Sc7#
      • 1...Kxc5!
    • 1.Qh5?
      • threat
        • 2.Qxf5#
      • 1...Sg3
        • 2.Rd6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...d3
        • 2.Sxe3#
      • 1...Sg5!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qxe4#
      • 1...Sg3
        • 2.Rd6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...d3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • R(d);OGATE::P(C),XR(d)
    • S(f);N_GUARD::S(E),XB(b)
    • S(h);N_GUARD::S(B),XP(c)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • K(g);N_SPINP(e),P-FLIGHT,XR(G)
    • Try
      • Q(A);N_PINP(e),P_PINS(h)
      • Threat
        • QAR2(A),XS(h)
      • Vars
        • S(f);N_GUARD::R1(F)
        • S(f);N_GUARD::R1(F),XS(f)
        • P(e);N_GUARD::S(B),XP(c)
      • Refutation
        • S(f);N_SPINS(h)
  • Actual
    • Q(A);N_PINP(e),P_PINS(f)
    • Threat
      • QAB1(A),XS(f)
    • Vars
      • S(h);N_GUARD::R1(F)
      • S(h);N_GUARD::R1(F),XS(h)
      • P(e);N_GUARD::S(E),XB(b)
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