MESON Chess Problem Database

Problem Display
PID: 97308 (3r4/2Qn2B1/1p3r1p/1K3B2/pNpkp1nN/2pP2bR/q1p2P2/4R2b w - - 0 1)

Stocchi, Ottavio

Problemas, 1950

3r4/2Qn2B1/1p3r1p/1K3B2/pNpkp1nN/2pP2bR/q1p2P2/4R2b

#2

10 + 15

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf2
      • 2.Qd6#
    • 1...Bxh4
      • 2.Qd6#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Se3
      • 2.fxe3#
  • Tries
    • 1.Sf3+?
      • 1...exf3
        • 2.Re4#
      • 1...Bxf3!
  • Keys
    • 1.Be6!
      • threat
        • 2.Sf5#
      • 1...Bxh4
        • 2.Sc6#
        • 2.Qd6#
      • 1...Bxc7
        • 2.Sc6#
      • 1...Bd6
        • 2.Sc6#
        • 2.Qxd6#
      • 1...Be5
        • 2.Sc6#
      • 1...Se3
        • 2.fxe3#
      • 1...Sge5
        • 2.Qd6#
      • 1...Sde5
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(e);N_GUARD,XP(B)::QAR2(I)
    • B(e);N_GUARD,XS(F)::QAR2(I)
    • B(e);N_GUARD::QAR2(I),XB(e)
    • S(j);OGATE::P(B),XS(j)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • P(i);XS(F)::R1(A)
      • Refutation
        • B(a);XS(F)
  • Actual
    • B(H);
    • Threat
      • S(F)
    • Vars
      • B(e);XQ(I)::S(E)
      • B(e);N_SPINR(l)::S(E)
      • S(j);OGATE::P(B),XS(j)
      • S(j);N_SPINR(l),S_CUTB(e)::QAR2(I)
      • S(n);N_GUARD,N_SPINR(l),SBLOCK::QAB(I),XP(k)
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Developed and maintained by Brian Stephenson.
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