MESON Chess Problem Database

Problem Display
PID: 138443 (3r3b/1p3p2/3p3R/1K3P2/1N1kNPp1/1PpP4/2p4p/4Q2n w - - 0 1)

Travasoni, Marco

Probleemblad, 1984

3r3b/1p3p2/3p3R/1K3P2/1N1kNPp1/1PpP4/2p4p/4Q2n

#2

9 + 11

14744 Nuova Antologia dei Problemisti Italiani 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxd6#
    • 1...Rb8
      • 2.Rxd6#
    • 1...Rc8
      • 2.Rxd6#
    • 1...Re8
      • 2.Rxd6#
    • 1...Rf8
      • 2.Rxd6#
    • 1...Rg8
      • 2.Rxd6#
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sg3
      • 2.Qf2#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Qe4#
      • 1...Sxf2
        • 2.Qxf2#
      • 1...Re8
        • 2.Rxd6#
      • 1...d5
        • 2.Sxc2#
      • 1...Sg3!
    • 1.Sg3?
      • threat
        • 2.Qe4#
      • 1...Sxg3
        • 2.Qf2#
      • 1...Re8
        • 2.Rxd6#
      • 1...Sf2
        • 2.Qxf2#
      • 1...d5!
    • 1.Sg5?
      • threat
        • 2.Qe4#
      • 1...Re8
        • 2.Rxd6#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Sg3
        • 2.Qf2#
      • 1...d5!
    • 1.Sxd6?
      • threat
        • 2.Qe4#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Sg3
        • 2.Qf2#
      • 1...Re8!
    • 1.Sf6?
      • threat
        • 2.Qe4#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Sg3
        • 2.Qf2#
      • 1...d5
        • 2.Qe5#
      • 1...Re8!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qe4#
      • 1...Re8
        • 2.Rxd6#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Sg3
        • 2.Qf2#
      • 1...d5
        • 2.Sxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(j);N_GUARD::R(I),XP(g)
    • S(a);N_GUARD::QAB(A),XS(a)
    • S(a);N_GUARD::QAB(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • S(a);OGATE,XS(E)::QAB(A),XS(a)
        • R(j);N_GUARD::R(I),XP(g)
        • P(g);SBLOCK::S(D),XP(b)
      • Refutation
        • S(a);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • S(a);N_GUARD,XS(E)::QAB(A)
        • R(j);N_GUARD::R(I),XP(g)
        • S(a);N_GUARD::QAB(A),XS(a)
      • Refutation
        • P(g);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • R(j);N_GUARD::R(I),XP(g)
        • S(a);N_GUARD::QAB(A),XS(a)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • P(g);
    • Try
      • S(E);XP(g)
      • Threat
        • QAR1(A)
      • Vars
        • S(a);N_GUARD::QAB(A),XS(a)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • R(j);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • S(a);N_GUARD::QAB(A),XS(a)
        • S(a);N_GUARD::QAB(A)
        • P(g);N_GUARD::QAB1(A)
      • Refutation
        • R(j);
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • R(j);N_GUARD::R(I),XP(g)
      • S(a);N_GUARD::QAB(A),XS(a)
      • S(a);N_GUARD::QAB(A)
      • P(g);SBLOCK::S(D),XP(b)
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