MESON Chess Problem Database

Problem Display
PID: 63884 (b4b2/1Q2n3/1p4r1/1P2Rp2/Nr1k2n1/5RB1/4BPK1/6N1 w - - 0 1)

Stocchi, Ottavio

1st Prize, Tidens Kravs, 1950/II

b4b2/1Q2n3/1p4r1/1P2Rp2/Nr1k2n1/5RB1/4BPK1/6N1

#2

10 + 9

5407 Selected Stocchi (II) 2004
273 Mat Plus 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rd3#
    • 1...Rg5
      • 2.Qxb6#
    • 1...Rg7
      • 2.Qxb6#
    • 1...Rg8
      • 2.Qxb6#
    • 1...Se3+
      • 2.fxe3#
    • 1...Sxe5
      • 2.Rf4#
    • 1...Sf6
      • 2.Qxb6#
    • 1...f4
      • 2.Re4#
  • Tries
    • 1.Rd5+?
      • 1...Ke4
        • 2.Sc3#
        • 2.Bd3#
        • 2.Rf4#
      • 1...Sxd5!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qc3#
      • 1...Bxf3+
        • 2.Sxf3#
      • 1...Se3+
        • 2.fxe3#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Rb3
        • 2.Qc4#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Rc6
        • 2.Rf4#
      • 1...Bc6
        • 2.Qxb6#
      • 1...Sd5
        • 2.Rd3#
      • 1...Sc6
        • 2.Rf4#

There are these versions: 133991

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 5
  • Sets
    • R(a);SBLOCK::R1(E)
    • R(f);N_GUARD::QAB(J),XP(e)
    • S(c);CHECK,OGATE,P_PINB(F)::P(C),XS(c)
    • S(c);P_PINB(F),SBLOCK,XR(I)::R(E)
    • S(c);P_PINB(F),S_CUTR(f)::QAB(J),XP(e)
    • P(d);N_GUARD::R1(I)
  • Tries
    • Try
      • R(I);CHECK
      • Refutation
        • S(g);XR(I)
  • Actual
    • Q(J);P_SPINR(E)
    • Threat
      • QAB1(J)
    • Vars
      • B(h);CHECK,XR(E)::S(A),XB(h)
      • S(c);CHECK,OGATE,P_PINB(F)::P(C),XS(c)
      • S(c);OGATE,P_PINB(F),XR(I)::QAB1(J),XS(c)
      • R(a);N_GUARD::QAR1(J)
      • R(a);N_GUARD::QAR1(J),XR(a)
      • R(f);N_PINR(E)::R(E)
      • B(h);S_CUTR(f)::QAB(J),XP(e)
      • S(g);N_PINR(E)::R1(E)
      • S(g);N_PINR(E)::R(E)
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