MESON Chess Problem Database

Problem Display
PID: 18979 (8/2K5/8/kp6/bR6/Q7/3P4/8 w - - 0 1)

Jespersen, Karl Lorenz Jesper

Weekly Gleaner, 1883

8/2K5/8/kp6/bR6/Q7/3P4/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb5+?
      • 1...Ka6
        • 2.Qxa4#
      • 1...Kxb5!
    • 1.Qa1?
      • 1...Kxb4
        • 2.Qc3#
      • 1...Ka6!
  • Keys
    • 1.Qd3!
      • 1...Kxb4
        • 2.Qc3#
      • 1...Ka6
        • 2.Rxa4#
      • 1...Bd1
        • 2.Qxb5#
      • 1...Bc2
        • 2.Qxb5#
      • 1...Bb3
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XP(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XB(a)
      • Refutation
        • K(b);N_SPINB(a),P-FLIGHT,XR(C)
    • Try
      • Q(B);
      • Vars
        • K(b);N_SPINB(a),OGATEB,S_FLIGHT,XR(C)::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);N_PINB(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(C)::QAB1(B)
      • K(b);P-FLIGHT,P_SPINP(c)::R(C),XB(a)
      • B(a);N_GUARD::QAR1(B),XP(c)
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