MESON Chess Problem Database

Problem Display
PID: 25838 (5b2/1R2pBp1/KB4r1/3p2p1/p5bq/NkpR4/pPN5/2r5 w - - 0 1)

Stocchi, Ottavio

Comm., Il Problema, 1932/IV

5b2/1R2pBp1/KB4r1/3p2p1/p5bq/NkpR4/pPN5/2r5

#2

8 + 13

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb6+
      • 2.Rxb6#
    • 1...Be6
      • 2.Bd4#
    • 1...e6
      • 2.Bc5#
  • Keys
    • 1.Rxd5!
      • threat
        • 2.Rb5#
      • 1...Rxb6+
        • 2.Rxb6#
      • 1...Kxb2
        • 2.Rb5#
      • 1...cxb2
        • 2.Rd3#
      • 1...Be6
        • 2.Bd4#
      • 1...e6
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(j);CHECK,OGATE,P_SPINR(j),XB(F)::R(G),XR(j)
    • B(f);N_PINB(F)::R(G)+B(F)
    • P(k);N_PINB(F)::R(G)+B(F)
  • Actual
    • R(D);N_PINP(d),XP(h)
    • Threat
      • B(H)+R(D),DCHECK
    • Vars
      • R(j);CHECK,OGATE,P_SPINR(j),XB(F)::R(G),XR(j)
      • K(c);P-FLIGHT,XP(A)::R(D)
      • P(d);SBLOCK,XP(A)::B(H)+R(D),DCHECK
      • B(f);N_PINB(F)::R(G)+B(F)
      • P(k);N_PINB(F)::R(G)+B(F)
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