MESON Chess Problem Database

Problem Display
PID: 17275 (8/3N4/p1P5/Kb6/3k1N2/3p3R/2p5/1nB1Q3 w - - 0 1)

Stocchi, Ottavio

L'Italia Scacchistica, 1929

8/3N4/p1P5/Kb6/3k1N2/3p3R/2p5/1nB1Q3

#2

7 + 6

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

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb4#
    • 1...Ba4
      • 2.Qb4#
    • 1...Bc4
      • 2.Qe5#
    • 1...Bxc6
      • 2.Qb4#
  • Tries
    • 1.Bb2+?
      • 1...Kc4
        • 2.Qb4#
        • 2.Qe6#
      • 1...Sc3!
    • 1.Be3+?
      • 1...Kc4
        • 2.Qb4#
      • 1...Ke4!
    • 1.Rxd3+?
      • 1...Kc4
        • 2.Qb4#
        • 2.Qe4#
        • 2.Qe6#
      • 1...Bxd3!
    • 1.Qe3+?
      • 1...Kc4
        • 2.Qxd3#
      • 1...Kc3!
    • 1.Qe4+?
      • 1...Kc3
        • 2.Qb4#
      • 1...Kxe4!
  • Keys
    • 1.Qe6!
      • 1...Kc3
        • 2.Se2#
      • 1...Bxc6
        • 2.Rxd3#
      • 1...Sc3
        • 2.Be3#
      • 1...Ba4
        • 2.Rxd3#
      • 1...Bc4
        • 2.Qe5#
      • 1...Sd2
        • 2.Bb2#
      • 1...Sa3
        • 2.Bb2#
      • 1...d2
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(d);P-FLIGHT::QAR1(B)
    • B(e);N_GUARD::QAR2(B)
    • B(e);SBLOCK::QAB1(B)
    • B(e);N_GUARD,XP(F)::QAR2(B)
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • B(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(B)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • R(C);CHECK,XP(c)
      • Refutation
        • B(e);XR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(B),XP(c)
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);OGATE,P_SPINP(c),S_FLIGHT::QAB1(B)
      • Refutation
        • K(d);P-FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT::S(D)
      • B(e);N_GUARD,XP(F)::R1(C),XP(c)
      • S(a);SBLOCK::B(A)
      • B(e);N_GUARD::R1(C),XP(c)
      • B(e);SBLOCK::QAB1(B)
      • S(a);N_GUARD::B(A)
      • P(c);::QAR1(B)
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