MESON Chess Problem Database

Problem Display
PID: 22724 (3N4/p7/1k6/1pR2Q2/8/4K3/8/8 w - - 0 1)

Patzke, Chris

Freie Presse, 1993

3N4/p7/1k6/1pR2Q2/8/4K3/8/8

#2

4 + 3

6113 Problemschach-Jahrbuch (1993) 1994
2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Rc6#
  • Tries
    • 1.Qf6+?
      • 1...Kxc5
        • 2.Qd4#
      • 1...Ka5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxb5#
      • 1...Ka5
        • 2.Qxb5#
      • 1...Kxc5
        • 2.Qd4#
      • 1...Ka6
        • 2.Qxb5#
      • 1...b4
        • 2.Qb5#
        • 2.Qc6#
        • 2.Qd6#
      • 1...a5
        • 2.Rc6#
      • 1...a6
        • 2.Qc7#

Anticipated by 262370(1991)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(a);::R1(B)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(B)::QAB1(C)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XP(a)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAR1(C),XP(a)
      • K(b);OGATEB,S_FLIGHT,XR(B)::QAB1(C)
      • K(b);P-FLIGHT::QAB1(C),XP(a)
      • P(c);SBLOCK::R1(B)
      • P(c);SBLOCK::QAB1(C)
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