MESON Chess Problem Database

Problem Display
PID: 241940 (8/8/5p2/B1p2Q2/3k4/8/3K4/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1933

8/8/5p2/B1p2Q2/3k4/8/3K4/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qd3#
    • 1...c4
      • 2.Bc3#
      • 2.Bb6#
  • Tries
    • 1.Kc2?
      • 1...Kc4
        • 2.Qd3#
      • 1...c4
        • 2.Bb6#
      • 1...Ke3!
    • 1.Ke2?
      • 1...Kc4
        • 2.Qd3#
      • 1...c4!
    • 1.Bc7?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Bb6#
      • 1...Kc4!
    • 1.Bd8?
      • 1...c4
        • 2.Bb6#
        • 2.Bxf6#
      • 1...Kc4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Bc3#
      • 1...c4
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
        • P(b);OGATEB,SBLOCK::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Threat
        • QAR1(C)
      • Vars
        • P(b);OGATEB,SBLOCK::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • B(B)
    • Vars
      • P(b);OGATEB::B(B)
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