MESON Chess Problem Database

Problem Display
PID: 241943 (8/8/8/Q7/8/Nkp5/8/K3B3 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1933

8/8/8/Q7/8/Nkp5/8/K3B3

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Qb4#
  • Tries
    • 1.Bd2?
      • 1...c2
        • 2.Qb4#
      • 1...cxd2!
    • 1.Qc5?
      • 1...c2
        • 2.Qb4#
      • 1...Ka4!
  • Keys
    • 1.Qxc3+!
      • 1...Ka4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(b);::QAR1(D)
  • Tries
    • Try
      • B(B);
      • Vars
        • P(b);::QAR1(D)
      • Refutation
        • P(b);XB(B)
    • Try
      • Q(D);
      • Vars
        • P(b);::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);CHECK,XP(b)
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
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