MESON Chess Problem Database

Problem Display
PID: 242095 (8/8/8/3p4/R2K4/1kN5/2r5/3Q4 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/8/8/3p4/R2K4/1kN5/2r5/3Q4

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kb2
      • 2.Qb1#
  • Tries
    • 1.Ra1?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb4!
    • 1.Ra5?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb4!
    • 1.Ra6?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb4!
    • 1.Ra7?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb4!
    • 1.Ra8?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb4!
  • Keys
    • 1.Kd3!
      • threat
        • 2.Qxc2#
      • 1...Kb2
        • 2.Qxc2#
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINR(a),P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • R(C);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • QAB1(A),XR(a)
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