MESON Chess Problem Database

Problem Display
PID: 187687 (K7/7Q/2P5/3kp1P1/4N3/B7/8/8 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1909

K7/7Q/2P5/3kp1P1/4N3/B7/8/8

#2

6 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Qb7#
    • 1...Ke6
      • 2.Qd7#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qd7#
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qxe4#
      • 1...Kd4!
    • 1.Sd6?
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qf7#
      • 1...e4
        • 2.Qxe4#
      • 1...Kd4!
    • 1.Bb2?
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qd7#
      • 1...Kc4!
    • 1.Bc5?
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qd7#
      • 1...Kc4!
  • Keys
    • 1.Sf2!
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(E)
    • K(a);S_FLIGHT::QAB1(E)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR2(E)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(E)
        • K(a);S_FLIGHT::QAB1(E)
        • P(b);::QAB1(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(E)
        • K(a);S_FLIGHT::QAB1(E)
        • P(b);::QAB1(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);P-FLIGHT::QAR1(E)
      • K(a);OGATEB,S_FLIGHT,XP(D)::QAB1(E)
      • P(b);::QAB1(E),XP(b)
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