MESON Chess Problem Database

Problem Display
PID: 30447 (2K5/p1P1kBpN/rR6/p3NP1p/6pq/7r/2p4B/2Q1R2n w - - 0 1)

Stocchi, Ottavio

4th Comm., Aragona Artistic Group, 1949-1950

2K5/p1P1kBpN/rR6/p3NP1p/6pq/7r/2p4B/2Q1R2n

#2

10 + 11

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe1
      • 2.Qg5#
    • 1...Qf2
      • 2.Qg5#
    • 1...Qg3
      • 2.Qg5#
    • 1...Qg5
      • 2.Qxg5#
    • 1...Rxh2
      • 2.Qa3#
    • 1...Ra3
      • 2.Qxa3#
    • 1...Sg3
      • 2.Qa3#
    • 1...g5
      • 2.f6#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qd6#
        • 2.Qd7#
        • 2.Qd8#
      • 1...Rxb6
        • 2.Qd7#
        • 2.Qd8#
      • 1...axb6
        • 2.Qd7#
        • 2.Qd8#
      • 1...Qf6
        • 2.Qd7#
        • 2.Qd8#
      • 1...Rd3!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Sc6#
      • 1...Rxh2
        • 2.Qa3#
      • 1...Qg3
        • 2.Qg5#
      • 1...Rg3
        • 2.Sf3#
      • 1...Sg3
        • 2.Qa3#
      • 1...g3
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(e);N_GUARD,XR(B)::QAB(A)
    • Q(e);N_GUARD::QAB(A)
    • Q(e);N_GUARD::QAB(A),XQ(e)
    • R(c);N_GUARD,XB(C)::QAB(A)
    • R(c);N_GUARD::QAB(A),XR(c)
    • S(a);S_CUTR(c)::QAB(A)
    • P(k);N_GUARD,S_CUTQ(e)::P(E)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • R(c);
  • Actual
    • B(H);
    • Threat
      • R(B)+S(D),DCHECK
    • Vars
      • R(c);N_GUARD,XB(C)::QAB(A)
      • Q(e);N_GUARD::QAB(A)
      • R(c);S_CUTQ(e)::R(B)+S(D)
      • S(a);S_CUTR(c)::QAB(A)
      • P(d);S_CUTQ(e),S_CUTR(c)::R(B)+S(D)
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