MESON Chess Problem Database

Problem Display
PID: 25690 (5B2/K1ppq3/p2kP1Q1/5R2/1P2r1Pb/2NNp3/8/r2R3B w - - 0 1)

Stocchi, Ottavio

3rd HM., Magasinet, 1931

5B2/K1ppq3/p2kP1Q1/5R2/1P2r1Pb/2NNp3/8/r2R3B

#2

11 + 9

3100 Selected Stocchi (I) 2001
14475 Mat Plus Review 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Se5#
    • 1...Rxe6
      • 2.Sc1#
  • Tries
    • 1.Sc1+?
      • 1...Rd4
        • 2.Rxd4#
      • 1...Kc6!
    • 1.Se5+?
      • 1...Rd4
        • 2.Sc4#
        • 2.Sf7#
        • 2.Rxd4#
      • 1...Rxd1!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxd7#
      • 1...Kc6
        • 2.Se5#
      • 1...Kxe6
        • 2.Sc5#
      • 1...Rxe6
        • 2.Sc1#
      • 1...dxe6
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);N_SPINQ(i),P-FLIGHT,P_SPINR(c)::S(D)
    • R(c);N_GUARD,P_SPINR(c),XP(H)::R(A)+S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::R(A),XR(c)
      • Refutation
        • K(f);N_SPINQ(i),P-FLIGHT,P_SPINR(c)
    • Try
      • S(D);CHECK
      • Refutation
        • R(a);XR(A)
  • Actual
    • Q(I);
    • Threat
      • QAR1(I),XP(h)
    • Vars
      • K(f);N_SPINQ(i),P-FLIGHT,P_SPINP(h),P_SPINR(c)::S(D)
      • K(f);P-FLIGHT,XP(H)::S(D)
      • R(c);N_GUARD,SBLOCK,XP(H)::R(A)+S(D)
      • P(h);SBLOCK,XP(H)::S(C),XR(c)
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