MESON Chess Problem Database

Problem Display
PID: 189577 (8/8/1K1pp3/3k4/8/4p1P1/2P1P3/QB6 w - - 0 1)

Hoffmann, Karoly

Pesti Naplo, 1911

8/8/1K1pp3/3k4/8/4p1P1/2P1P3/QB6

#2

6 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.c4#
  • Tries
    • 1.Kb5?
      • threat
        • 2.c4#
      • 1...Ke4
        • 2.c4#
      • 1...e5!
    • 1.Qb2?
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke4
        • 2.c4#
      • 1...e5!
    • 1.Qa4?
      • 1...e5
        • 2.Ba2#
      • 1...Ke5!
  • Keys
    • 1.c3!
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke5
        • 2.c4#
      • 1...e5
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::B(B)+P(C)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • P(C)
      • Vars
        • K(b);S_FLIGHT::B(B)+P(C)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::B(B)
        • K(b);S_FLIGHT::B(B)+P(C)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • P(d);SBLOCK::B(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • K(b);S_FLIGHT::B(B)
      • K(b);P-FLIGHT::QAB(A)+P(C)
      • P(d);SBLOCK::QAB(A)
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