MESON Chess Problem Database

Problem Display
PID: 109435 (8/3K2bb/1P3p2/n1pk2n1/2N5/1Pp1QR2/8/6B1 w - - 0 1)

Stocchi, Ottavio

Szoghy TT, 1951

8/3K2bb/1P3p2/n1pk2n1/2N5/1Pp1QR2/8/6B1

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Qxd3#
    • 1...Be4
      • 2.Qxc5#
    • 1...Bf5+
      • 2.Rxf5#
    • 1...Bg8
      • 2.Rf5#
      • 2.Qd3#
    • 1...Sxf3
      • 2.Qe6#
    • 1...Sh3
      • 2.Qe6#
    • 1...Se4
      • 2.Qd3#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sf7
      • 2.Qe6#
  • Tries
    • 1.Qd2+?
      • 1...Ke4
        • 2.Rf4#
        • 2.Qd3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...cxd2!
    • 1.b7?
      • threat
        • 2.Sb6#
      • 1...Bf5+
        • 2.Rxf5#
      • 1...Be4
        • 2.Qxc5#
      • 1...Se4
        • 2.Qd3#
      • 1...Sxc4!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Se3#
      • 1...Bf5+
        • 2.Qxf5#
      • 1...Sxc4
        • 2.bxc4#
      • 1...Be4
        • 2.Qd6#
      • 1...Se4
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(h);N_GUARD::QAR2(C),XB(h)
    • B(h);SBLOCK::QAR1(C),XP(c)
    • B(h);CHECK,N_GUARD::R(D),XB(h)
    • S(e);N_GUARD,XR(D)::QAB1(C)
    • S(e);N_GUARD::QAB1(C)
    • S(e);S_CUTB(h)::QAR2(C)
    • S(e);N_GUARD::QAB1(C),XS(e)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::QAR2(C),XB(h)
      • Refutation
        • P(a);XQ(C)
    • Try
      • P(F);
      • Threat
        • S(E)
      • Vars
        • B(h);CHECK,N_GUARD::R(D),XB(h)
        • B(h);SBLOCK::QAR1(C),XP(c)
        • S(e);S_CUTB(h)::QAR2(C)
      • Refutation
        • S(b);XS(E)
  • Actual
    • Q(C);
    • Threat
      • S(E)
    • Vars
      • B(h);CHECK,N_GUARD::QAR2(C),XB(h)
      • S(b);OGATE,XS(E)::P(B),XS(b)
      • B(h);SBLOCK::QAR1(C)
      • S(e);S_CUTB(h)::R(D)
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