MESON Chess Problem Database

Problem Display
PID: 63882 (8/3N4/p1Qr4/1p3p2/3N1R2/1BpkpK2/2pP1b2/qb2r3 w - - 0 1)

Stocchi, Ottavio

1st Prize, Bamahane, 1951

8/3N4/p1Qr4/1p3p2/3N1R2/1BpkpK2/2pP1b2/qb2r3

#2

7 + 12

78 Bulletin Ouvrier des Echecs 1953
5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Qxc3#
    • 1...Qa3
      • 2.Qxc3#
    • 1...Qa4
      • 2.Qxc3#
    • 1...cxd2
      • 2.Se5#
    • 1...exd2
      • 2.Sc5#
  • Keys
    • 1.Se2!
      • threat
        • 2.Qxd6#
      • 1...Kxd2
        • 2.Qxd6#
      • 1...Rxc6
        • 2.Rd4#
      • 1...Rxd7
        • 2.Qxd7#
      • 1...cxd2
        • 2.Sc5#
      • 1...exd2
        • 2.Se5#
      • 1...Qa3
        • 2.Qxc3#
      • 1...Qa4
        • 2.Qxc3#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Re6
        • 2.Rd4#
        • 2.Qd5#
      • 1...Rf6
        • 2.Rd4#
        • 2.Qd5#
      • 1...Rg6
        • 2.Rd4#
        • 2.Qd5#
      • 1...Rh6
        • 2.Rd4#
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(a);N_GUARD::QAR1(F),XP(f)
    • P(f);SBLOCK,XP(A)::S(G)
    • P(h);SBLOCK,XP(A)::S(G)
  • Actual
    • S(D);
    • Threat
      • QAR(F),XR(l)
    • Vars
      • K(g);P-FLIGHT,XP(A)::QAR(F),XR(l)
      • R(l);N_GUARD,XQ(F)::R1(E)
      • R(l);OGATE,XS(G)::QAR(F),XR(l)
      • P(f);SBLOCK,XP(A)::S(G)
      • P(h);SBLOCK,XP(A)::S(G)
      • Q(a);N_GUARD::QAR1(F),XP(f)
      • R(l);N_GUARD::R1(E),XR(l)
      • R(l);N_GUARD::QAR2(F),XR(l)
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