MESON Chess Problem Database

Problem Display
PID: 241733 (8/1p6/2p5/Qpk1K3/8/N7/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1928

8/1p6/2p5/Qpk1K3/8/N7/8/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.Qc3#
  • Tries
    • 1.Ke6?
      • 1...b6
        • 2.Qc3#
      • 1...Kd4!
    • 1.Sc2?
      • 1...b6
        • 2.Qc3#
        • 2.Qb4#
      • 1...Kc4!
    • 1.Qe1?
      • 1...b6
        • 2.Qc3#
      • 1...b4
        • 2.Qf2#
        • 2.Qg1#
        • 2.Qe3#
      • 1...Kb6!
    • 1.Qa7+?
      • 1...b6
        • 2.Qe7#
      • 1...Kb4!
  • Keys
    • 1.Sb1!
      • 1...Kc4
        • 2.Qc3#
      • 1...b6
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAR2(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(A);
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Vars
        • P(d);OGATE,P_SPINP(d),SBLOCK::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(A);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • P(d);SBLOCK::QAR2(B)
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