MESON Chess Problem Database

Problem Display
PID: 39643 (8/8/2K5/2p5/2kp4/P1p5/2Q5/8 w - - 0 1)

Lindner, Laszlo

Magyar Sakkvilag, 1933

8/8/2K5/2p5/2kp4/P1p5/2Q5/8

#2

3 + 4

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qa4#
  • Tries
    • 1.Kd6?
      • 1...d3
        • 2.Qa4#
      • 1...Kb5!
    • 1.Qb1?
      • threat
        • 2.Qb5#
      • 1...c2
        • 2.Qxc2#
      • 1...d3!
    • 1.Qe4?
      • 1...c2
        • 2.Qxc2#
      • 1...Kb3!
    • 1.Qf5?
      • 1...c2
        • 2.Qxc2#
      • 1...d3
        • 2.Qd5#
      • 1...Kb3!
  • Keys
    • 1.Qd1!
      • 1...c2
        • 2.Qxc2#
      • 1...d3
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAB1(A)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(A);N_PINP(a),P_PINP(c)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(c);::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(c);SBLOCK::QAR2(A)
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