MESON Chess Problem Database

Problem Display
PID: 121716 (rb6/p7/p7/8/7p/5P1k/5P1B/1K4Q1 w - - 0 1)

Stocchi, Ottavio

Il Due Mosse, 1954

rb6/p7/p7/8/7p/5P1k/5P1B/1K4Q1

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxh2
      • 2.Qf1#
      • 2.Qg4#
  • Tries
    • 1.Bg3?
      • threat
        • 2.Qh2#
        • 2.Qf1#
        • 2.Qh1#
      • 1...hxg3
        • 2.Qh1#
      • 1...Bxg3!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Bg3#
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bxb8#
      • 1...Bxh2
        • 2.Qf1#
      • 1...Bg3
        • 2.Bxg3#
      • 1...Bf4
        • 2.Bg3#
        • 2.Bxf4#
      • 1...Be5
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bxe5#
      • 1...Bd6
        • 2.Bg3#
        • 2.Bf4#
        • 2.Be5#
        • 2.Bxd6#
      • 1...Bc7
        • 2.Bg3#
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);XB(D)::QAR2(B)
      • Refutation
        • B(f);XB(D)
  • Actual
    • Q(B);
    • Threat
      • DUALS(6)
    • Vars
      • B(f);P_SPINB(f),SBLOCK,XB(D)::QAB(B)
      • B(f);::QAR(B)+B(D),XB(f)
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