MESON Chess Problem Database

Problem Display
PID: 187960 (8/5K2/1n1p4/3k4/1PR5/8/Q1n1P3/5B2 w - - 0 1)

Berkovits, Rudolf

Pesti Naplo, 1910

8/5K2/1n1p4/3k4/1PR5/8/Q1n1P3/5B2

#2

6 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qxc2?
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Sxc4!
  • Keys
    • 1.Qb2!
      • threat
        • 2.e4#
      • 1...Kxc4
        • 2.e4#
      • 1...Sxc4
        • 2.Bg2#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Se3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);XS(a)
      • Threat
        • QAB1(B)
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • S(c);XR(E)
  • Actual
    • Q(B);
    • Threat
      • P(C)
    • Vars
      • K(b);S_FLIGHT,XR(E)::B(A)+P(C)
      • S(c);SBLOCK,XR(E)::B(A)
      • S(a);N_GUARD::QAR1(B),XS(a)
      • S(a);N_GUARD::QAR1(B)
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