MESON Chess Problem Database

Problem Display
PID: 67563 (5B2/nQpP4/5K2/R1pPNp2/3k3p/r1r4R/2PN1Pn1/6bB w - - 0 1)

Stocchi, Ottavio

Comm., Magyar Sakkelet, 1955

5B2/nQpP4/5K2/R1pPNp2/3k3p/r1r4R/2PN1Pn1/6bB

#2

12 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Bxc5#
    • 1...Se3
      • 2.Sef3#
    • 1...c4
      • 2.Bc5#
  • Tries
    • 1.Sc6+?
      • 1...Kxd5
        • 2.d8Q#
        • 2.d8R#
      • 1...Sxc6!
    • 1.Qb4+?
      • 1...Kxd5
        • 2.d8Q#
        • 2.d8R#
      • 1...Rc4
        • 2.Qxc4#
      • 1...c4
        • 2.Qc5#
      • 1...cxb4!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Rd3#
      • 1...Kxd5
        • 2.d8Q#
        • 2.d8R#
      • 1...Se1
        • 2.Bxc5#
      • 1...Se3
        • 2.Bxc5#
      • 1...Sf4
        • 2.Bxc5#
      • 1...c4
        • 2.Sef3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);N_GUARD::B(L),XP(g)
    • S(b);S_CUTR(d)::S(H)
    • P(g);S_CUTR(d)::B(L)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(g),P_SPINS(b),XP(G)::P=Q
      • Refutation
        • S(i);XS(H)
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(g),P_SPINS(b),XP(G)::P=Q
        • R(d);N_GUARD,P_SPINR(d)::QAR1(J),XR(d)
        • P(g);P_SPINP(g),S_CUTR(d)::QAB1(J)
      • Refutation
        • P(g);XQ(J)
  • Actual
    • Q(J);P_PINR(d)
    • Threat
      • R1(E)
    • Vars
      • K(e);N_SPINR(d),P-FLIGHT,P_SPINP(g),P_SPINS(b),XP(G)::P=Q
      • S(b);::B(L),XP(g)
      • P(g);::S(H)
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