MESON Chess Problem Database

Problem Display
PID: 242040 (8/8/8/6p1/6N1/5P2/KB1k4/5Q2 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/8/8/6p1/6N1/5P2/KB1k4/5Q2

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc2
      • 2.Qe2#
  • Tries
    • 1.Qd3+?
      • 1...Ke1
        • 2.Bc3#
      • 1...Kxd3!
    • 1.f4?
      • 1...Kc2
        • 2.Qe2#
      • 1...gxf4!
  • Keys
    • 1.Qf2+!
      • 1...Kd1
        • 2.Se3#
      • 1...Kd3
        • 2.Se5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • P(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • P(b);XP(D)
  • Actual
    • Q(A);CHECK
    • Vars
      • K(a);P-FLIGHT::S(E)
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