MESON Chess Problem Database

Problem Display
PID: 21692 (8/8/4K3/8/2N5/B3R3/ppkp2Q1/r1b2N2 w - - 0 1)

Bettmann, Henry Wald

Good Companions (May), 1920

8/8/4K3/8/2N5/B3R3/ppkp2Q1/r1b2N2

#2

6 + 6

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Kb1
      • 2.Qe4#
      • 2.Qg6#
  • Tries
    • 1.Sxb2?
      • threat
        • 2.Qe4#
        • 2.Qg6#
      • 1...Kb1
        • 2.Qe4#
        • 2.Qg6#
      • 1...Bxb2!
    • 1.Qxd2+?
      • 1...Kb1
        • 2.Qd3#
      • 1...Bxd2!
  • Keys
    • 1.Qc6!
      • 1...Kb1
        • 2.Qe4#
      • 1...Kd1
        • 2.Qa4#
      • 1...b1Q
        • 2.Sb2#
      • 1...b1S
        • 2.Qa4#
      • 1...b1B
        • 2.Sb2#
        • 2.Qa4#
      • 1...b1R
        • 2.Sb2#
      • 1...d1Q
        • 2.Scd2#
      • 1...d1S
        • 2.Qe4#
      • 1...d1B
        • 2.Scd2#
        • 2.Qe4#
      • 1...d1R
        • 2.Scd2#
      • 1...Rb1
        • 2.Sxb2#
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);XP(d)
      • Threat
        • DUALS(2)
      • Refutation
        • B(b);XS(E)
    • Try
      • Q(B);CHECK,XP(f)
      • Vars
        • K(e);S_FLIGHT::QAB(B)
      • Refutation
        • B(b);XQ(B)
  • Actual
    • Q(B);N_PINP(f)
    • Vars
      • K(e);S_FLIGHT::QAB(B)
      • P(d);SBLOCK::QAR(B)+S(E)
      • P(d);SBLOCK::QAB(B)
      • P(f);SBLOCK::QAR(B)+S(E)
      • P(f);SBLOCK::QAB(B)
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