MESON Chess Problem Database

Problem Display
PID: 703 (2b2N2/1nPp1B2/1Pk5/r7/2NK4/8/1R6/2R5 w - - 0 1)

Stocchi, Ottavio

British Chess Magazine, 1938

2b2N2/1nPp1B2/1Pk5/r7/2NK4/8/1R6/2R5

#2

8 + 5

14475 Mat Plus Review 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bd5#
    • 1...Ra2
      • 2.Bd5#
    • 1...Ra3
      • 2.Bd5#
    • 1...Ra4
      • 2.Bd5#
    • 1...Rd5+
      • 2.Bxd5#
    • 1...Ra6
      • 2.Bd5#
    • 1...Ra7
      • 2.Bd5#
    • 1...Ra8
      • 2.Bd5#
    • 1...Sc5
      • 2.Bd5#
    • 1...Sd6
      • 2.Sxa5#
    • 1...Sd8
      • 2.cxd8S#
    • 1...d6
      • 2.Sxa5#
      • 2.Se5#
  • Keys
    • 1.Sg6!
      • threat
        • 2.Se7#
      • 1...Rd5+
        • 2.Bxd5#
      • 1...Sc5
        • 2.Bd5#
      • 1...Sd6
        • 2.Sxa5#
      • 1...Sd8
        • 2.cxd8S#
      • 1...d5
        • 2.Sge5#
      • 1...d6
        • 2.Sce5#
      • 1...Re5
        • 2.Sgxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::B(G)
    • R(a);N_GUARD,P_PINS(C)::B(G)
    • R(a);CHECK,N_GUARD::B(G),XR(a)
    • S(c);S_CUTR(a)::B(G)
    • S(c);SBLOCK::R(A)+S(C),DCHECK,XR(a)
    • S(c);OGATE::PXS(c)=S
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • R(a);CHECK,N_GUARD::B(G),XR(a)
      • S(c);S_CUTR(a)::B(G)
      • S(c);SBLOCK::R(A)+S(C),DCHECK,XR(a)
      • S(c);OGATE::PXS(c)=S
      • P(d);S_CUTR(a)::S(H)
      • P(d);SBLOCK::R(A)+S(C),DCHECK
      • R(a);N_GUARD::S(H),XR(a)
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