MESON Chess Problem Database

Problem Display
PID: 28098 (7B/3K2nB/3p1Rp1/1N1r3N/2Pnkb1P/3R4/4Pr2/Q7 w - - 0 1)

Stocchi, Ottavio

Western Morning News, 1933

7B/3K2nB/3p1Rp1/1N1r3N/2Pnkb1P/3R4/4Pr2/Q7

#2

11 + 8

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

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Qxd4#
    • 1...Rc5
      • 2.Qxd4#
    • 1...Re5
      • 2.Sc3#
      • 2.Sxd6#
      • 2.Qxd4#
    • 1...Rf5
      • 2.Qxd4#
    • 1...Rg5
      • 2.Qxd4#
    • 1...Rxh5
      • 2.Qxd4#
    • 1...Be5
      • 2.Sc3#
    • 1...Sf3
      • 2.Rxf4#
  • Tries
    • 1.Sg3+?
      • 1...Ke5
        • 2.Re6#
      • 1...Bxg3!
    • 1.Rxf4+?
      • 1...Ke5
        • 2.Bxg7#
        • 2.Re3#
      • 1...Rxf4!
  • Keys
    • 1.Rxg6!
      • threat
        • 2.Re6#
      • 1...Ke5
        • 2.Re6#
      • 1...Kf5
        • 2.Rg5#
      • 1...Re5
        • 2.Sxd6#
      • 1...Rf5
        • 2.Qxd4#
      • 1...Be5
        • 2.Rg4#
      • 1...Sdf5
        • 2.Sf6#
      • 1...Sde6
        • 2.Rxe6#
      • 1...Sgf5
        • 2.Sc3#
      • 1...Sge6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD,XS(F)::QAR1(A),XS(b)
    • R(e);N_GUARD::QAR1(A),XS(b)
    • R(e);N_GUARD,N_SPINP(g)::QAR1(A),XS(b)
    • R(e);N_GUARD,XS(G)::QAR1(A),XS(b)
    • B(d);SBLOCK::S(F)
    • S(b);S_CUTR(a)::R1(H),XB(d)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(c);N_SPINP(g),P-FLIGHT,P_SPINS(b)::R1(H)
      • Refutation
        • B(d);XS(G)
    • Try
      • R(H);CHECK,XB(d)
      • Refutation
        • R(a);XR(H)
  • Actual
    • R(H);XP(g)
    • Threat
      • B(J)+R(H),DCHECK
    • Vars
      • K(c);P-FLIGHT,P_SPINS(b)::R1(H)
      • K(c);S_FLIGHT::B(J)+R(H),DCHECK
      • R(e);N_GUARD,SBLOCK,S_CUTB(d)::S(F),XP(f)
      • R(e);N_GUARD,SBLOCK::QAR1(A),XS(b)
      • B(d);SBLOCK::B(J)+R(H),DCHECK
      • S(b);SBLOCK::S(G)
      • S(b);::B(J)+R(H),DCHECK,XS(b)
      • S(h);SBLOCK::S(F)
      • S(h);::B(J)+R(H),DCHECK,XS(h)
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