MESON Chess Problem Database

Problem Display
PID: 206310 (4N3/8/4p1K1/p2kp3/P5Q1/4P3/8/8 w - - 0 1)

Mari, Alberto

L'Illustrazione Italiana, 1925

4N3/8/4p1K1/p2kp3/P5Q1/4P3/8/8

#2

5 + 4

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb4?
      • 1...Kc6
        • 2.Qb5#
      • 1...e4
        • 2.Qb5#
      • 1...axb4!
  • Keys
    • 1.Qe2!
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qb5#
      • 1...e4
        • 2.Qb5#

Anticipated by 119989(1897)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(a);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);P-FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::QAB1(C)
      • P(c);SBLOCK::QAR2(C)
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