MESON Chess Problem Database

Problem Display
PID: 132368 (1b1N2K1/2r3p1/1B1Npp2/4q3/1kp1Q3/R1pp4/1P6/8 w - - 0 1)

Parrinello, Mario

Torre & Cavallo - Scacco!, 2004

1b1N2K1/2r3p1/1B1Npp2/4q3/1kp1Q3/R1pp4/1P6/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Sxc6#
    • 1...Ra7
      • 2.Sc6#
      • 2.Qxc4#
    • 1...Rb7
      • 2.Sc6#
      • 2.Qxc4#
    • 1...Rd7
      • 2.Sc6#
      • 2.Qxc4#
    • 1...Re7
      • 2.Sc6#
      • 2.Qxc4#
    • 1...Rf7
      • 2.Sc6#
      • 2.Qxc4#
  • Tries
    • 1.Qa8?
      • threat
        • 2.Qa4#
      • 1...Qa5
        • 2.Qxa5#
      • 1...Qb5
        • 2.bxc3#
      • 1...Ra7
        • 2.Sc6#
      • 1...Ba7!
    • 1.Qxe5?
      • threat
        • 2.Ba5#
        • 2.Qxc3#
        • 2.Qa5#
        • 2.Qb5#
      • 1...cxb2
        • 2.Qxb2#
        • 2.Qc3#
        • 2.Qa5#
      • 1...Rc5
        • 2.Bxc5#
        • 2.Qxc3#
        • 2.Qxc5#
      • 1...Ra7
        • 2.Sc6#
        • 2.Bc5#
        • 2.Qxc3#
        • 2.Qb5#
        • 2.Qc5#
      • 1...c2
        • 2.Ba5#
        • 2.Qc3#
        • 2.Qa5#
        • 2.Qb5#
      • 1...fxe5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qa4#
      • 1...Rxc6
        • 2.Sxc6#
      • 1...Qa5
        • 2.Bxa5#
      • 1...Qb5
        • 2.Qxb5#
      • 1...Ra7
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(h);N_GUARD::S(F),XR(h)
  • Tries
    • Try
      • Q(C);N_PINP(d)
      • Threat
        • QAR1(C)
      • Vars
        • Q(e);N_GUARD::QAB1(C),XQ(e)
        • Q(e);N_GUARD::P(A),XP(a)
        • R(h);N_GUARD::S(F)
      • Refutation
        • B(j);
    • Try
      • Q(C);N_PINP(d),XQ(e)
      • Threat
        • DUALS(4)
      • Refutation
        • P(g);XQ(C)
  • Actual
    • Q(C);N_PINP(d)
    • Threat
      • QAR1(C)
    • Vars
      • R(h);XQ(C)::S(F),XR(h)
      • Q(e);N_GUARD::B(D),XQ(e)
      • Q(e);N_GUARD::QAR1(C),XQ(e)
      • R(h);N_GUARD::QAR1(C),XP(d)
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