MESON Chess Problem Database

Problem Display
PID: 104311 (8/r1n1Pq2/1NRNppp1/4kP1b/4p2B/2n1P1K1/2r1pP2/8 w - - 0 1)

Chicco, Adriano

4th Prize, Xeque!, 1948

8/r1n1Pq2/1NRNppp1/4kP1b/4p2B/2n1P1K1/2r1pP2/8

#2

9 + 12

70 American Chess Problemist 1949
6490 yacpdb 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...S3d5
      • 2.Sd7#
    • 1...S7d5
      • 2.Sbc4#
    • 1...exf5
      • 2.Sxf7#
    • 1...gxf5
      • 2.Sdc4#
  • Tries
    • 1.Kh3?
      • threat
        • 2.Bg3#
      • 1...exf5
        • 2.Sxf7#
      • 1...gxf5
        • 2.Sdc4#
      • 1...S3d5
        • 2.Sd7#
      • 1...S7d5
        • 2.Sbc4#
      • 1...Bg4+!
    • 1.Bg5?
      • threat
        • 2.Bf4#
      • 1...exf5
        • 2.Sxf7#
      • 1...S3d5
        • 2.Sd7#
      • 1...S7d5
        • 2.Sbc4#
      • 1...fxg5!
  • Keys
    • 1.Kh2!
      • threat
        • 2.Bg3#
      • 1...exf5
        • 2.Sxf7#
      • 1...gxf5
        • 2.Sdc4#
      • 1...S3d5
        • 2.Sd7#
      • 1...S7d5
        • 2.Sbc4#

Anticipated by 174233(1935)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);SBLOCK::S(F)
    • S(k);SBLOCK::S(F)
    • P(g);SBLOCK,XP(E)::S(H),XQ(l)
    • P(i);SBLOCK,XP(E)::S(H)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • B(D)
      • Vars
        • P(g);SBLOCK,XP(E)::S(H),XQ(l)
        • P(i);SBLOCK,XP(E)::S(H)
        • S(c);SBLOCK::S(F)
        • S(k);SBLOCK::S(F)
      • Refutation
        • B(f);CHECK
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • P(g);SBLOCK,XP(E)::S(H),XQ(l)
        • S(c);SBLOCK::S(F)
        • S(k);SBLOCK::S(F)
      • Refutation
        • P(h);XB(D)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • B(D)
    • Vars
      • P(g);SBLOCK,XP(E)::S(H),XQ(l)
      • P(i);SBLOCK,XP(E)::S(H)
      • S(c);SBLOCK::S(F)
      • S(k);SBLOCK::S(F)
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