MESON Chess Problem Database

Problem Display
PID: 11297 (Q7/2pp1N2/1bR3p1/1r1kBp1q/b5r1/Nn6/2PpR3/3K2n1 w - - 0 1)

Stocchi, Ottavio

1st Prize=, Western Morning News, 1937/II

Q7/2pp1N2/1bR3p1/1r1kBp1q/b5r1/Nn6/2PpR3/3K2n1

#2

8 + 13

3098 FIDE Album (1914-1944) (I) 1971
3100 Selected Stocchi (I) 2001
3666 Problem Paradise 2002
14475 Mat Plus Review 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.c4#
    • 1...Rg3
      • 2.c4#
    • 1...Rg5
      • 2.c4#
    • 1...Rc5
      • 2.Rd6#
    • 1...Bd4
      • 2.c4#
    • 1...Bc5
      • 2.Rd6#
    • 1...Sc5
      • 2.Rd6#
    • 1...f4
      • 2.c4#
  • Tries
    • 1.Rc5+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Kxc5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Rc4#
      • 1...Rxd4
        • 2.Rxc7#
      • 1...Bxd4
        • 2.c4#
      • 1...Sxd4
        • 2.Re5#
      • 1...dxc6
        • 2.Qd8#
      • 1...d6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • R(e);N_GUARD,P_PINR(C)::P(B)
    • R(f);SBLOCK::QAB(H)+R(F),DCHECK
    • B(j);S_CUTR(e)::P(B)
    • B(j);SBLOCK::QAB(H)+R(F),DCHECK
    • S(c);P_PINP(B),SBLOCK::QAB(H)+R(F),DCHECK
    • P(h);S_CUTR(e)::P(B)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR2(H)
      • Refutation
        • K(g);P-FLIGHT,XR(F)
  • Actual
    • B(E);
    • Threat
      • QAB(H)+R(F),DCHECK
    • Vars
      • K(g);P-FLIGHT,XB(E)::R1(F)
      • R(e);P_PINR(C),SBLOCK,XB(E)::QAB(H)+R(F),XP(l)
      • B(j);SBLOCK,XB(E)::P(B)
      • S(c);P_PINP(B),SBLOCK,XB(E)::R1(C)
      • P(m);OGATEB,P_SPINP(m),SBLOCK,XR(F)::QAR(H)
      • P(m);::QAB(H)+R(F),DCHECK,XP(m)
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