MESON Chess Problem Database

Problem Display
PID: 242048 (8/8/8/8/8/3p4/7K/2NQnk1N w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/8/8/8/8/3p4/7K/2NQnk1N

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qe2#
  • Tries
    • 1.Kg3?
      • 1...Kg1
        • 2.Qxe1#
      • 1...d2!
    • 1.Kh3?
      • 1...Kg1
        • 2.Qxe1#
      • 1...d2!
    • 1.Sf2?
      • 1...d2
        • 2.Qe2#
      • 1...Kxf2!
  • Keys
    • 1.Sb3!
      • 1...d2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAB1(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XS(a)
      • Refutation
        • P(c);
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Vars
        • P(c);N_GUARD::QAB1(B)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT,XS(C)
  • Actual
    • S(A);
    • Vars
      • P(c);::S(A),XP(c)
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