MESON Chess Problem Database

Problem Display
PID: 28215 (B2R4/1n4N1/b5KB/2p5/2NnkP2/4brp1/8/3RQrq1 w - - 0 1)

Stocchi, Ottavio

3rd Prize, La Correspondencia de Valencia, 1934

B2R4/1n4N1/b5KB/2p5/2NnkP2/4brp1/8/3RQrq1

#2

9 + 10

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Qxe3#
    • 1...Sc2
      • 2.Sd2#
      • 2.Sd6#
      • 2.Re8#
    • 1...Se2
      • 2.Sd6#
      • 2.Re8#
    • 1...Sb3
      • 2.Sd6#
      • 2.Re8#
    • 1...Sb5
      • 2.Sd2#
      • 2.Re8#
    • 1...Sf5
      • 2.Sd2#
    • 1...Sc6
      • 2.Sd2#
    • 1...Se6
      • 2.Sd2#
      • 2.Sd6#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Sf6#
      • 1...R3f2
        • 2.Qxe3#
      • 1...Rxf4!
    • 1.Se8?
      • threat
        • 2.Sf6#
      • 1...R3f2
        • 2.Qxe3#
      • 1...Rxf4!
    • 1.Bxb7+?
      • 1...Sc6
        • 2.Sd2#
        • 2.Sd6#
        • 2.Bxc6#
        • 2.Re8#
      • 1...Bxb7!
    • 1.Re8+?
      • 1...Se6
        • 2.Sd6#
        • 2.Rxe6#
      • 1...Kd5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxc5#
      • 1...Rxf4
        • 2.Sg5#
      • 1...Sxe6
        • 2.Sd2#
        • 2.Sd6#
      • 1...R3f2
        • 2.Qxe3#
      • 1...Se2
        • 2.Sd6#
      • 1...Sb3
        • 2.Sd6#
      • 1...Sc6
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(d);N_GUARD,S_CUTQ(b)::QAR1(B),XB(c)
    • S(f);::S(C)
    • S(f);N_SPINS(j)::S(C)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • R(d);N_GUARD,S_CUTQ(b)::QAR1(B),XB(c)
      • Refutation
        • R(d);XP(D)
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • R(d);N_GUARD,S_CUTQ(b)::QAR1(B),XB(c)
      • Refutation
        • R(d);XP(D)
    • Try
      • B(H);CHECK,XS(j)
      • Refutation
        • B(i);XB(H)
    • Try
      • R(I);CHECK
      • Refutation
        • K(g);N_SPINB(c),N_SPINS(j),P_SPINS(f),S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • S(G),XP(h)
    • Vars
      • R(d);SBLOCK,XP(D)::S(G)
      • R(d);N_GUARD,S_CUTQ(b)::QAR1(B),XB(c)
      • S(f);N_SPINB(c)::S(C)
      • S(f);::S(C)
      • S(f);N_SPINS(j)::S(C)
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