MESON Chess Problem Database

Problem Display
PID: 67652 (8/Q4p2/4R3/2K5/1NPrP3/3Bk1Pn/3N2p1/4B2n w - - 0 1)

Stocchi, Ottavio

4th Prize, Romanian Committee for Physical Culture and Sport, 1956

8/Q4p2/4R3/2K5/1NPrP3/3Bk1Pn/3N2p1/4B2n

#2

10 + 6

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4+
      • 2.Kxc4#
    • 1...Rxe4
      • 2.Kb5#
      • 2.Kd5#
      • 2.Kc6#
      • 2.Kd6#
      • 2.Rxe4#
    • 1...Rd5+
      • 2.Kxd5#
    • 1...Rd6
      • 2.Kxd6#
  • Tries
    • 1.Qa3?
      • threat
        • 2.Sc2#
      • 1...Rxc4+
        • 2.Bxc4#
      • 1...Rd5+
        • 2.Sxd5#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Sxg3!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Qf3#
      • 1...Rxc4+
        • 2.Sxc4#
      • 1...Rd5+
        • 2.exd5#
      • 1...g1S
        • 2.Sf1#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(e);CHECK,XP(F)::QAB(J)+K(H),XR(e)
    • R(e);CHECK::QAB(J)+K(H),XR(e)
    • R(e);::QAB(J)+K(H),XR(e)
  • Tries
    • Try
      • Q(J);
      • Threat
        • S(E)
      • Vars
        • R(e);CHECK,OGATE,XP(F)::QAR(J)+B(C),XR(e)
        • R(e);CHECK,N_GUARD::S(E),XR(e)
        • R(e);OGATE,P_SPINR(e),XB(C)::QAR1(J),XR(e)
      • Refutation
        • S(a);XP(D)
  • Actual
    • Q(J);XP(f)
    • Threat
      • QAR1(J)
    • Vars
      • R(e);CHECK,XP(F)::S(B),XR(e)
      • R(e);CHECK,OGATE::R(I)+P(G),XR(e)
      • P(b);N_GUARD::S(B)
      • S(d);N_GUARD::QAB1(J)
      • S(d);N_GUARD::QAB1(J),XS(d)
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