MESON Chess Problem Database

Problem Display
PID: 242012 (8/N7/8/Q7/N3P3/1k6/2p5/2K5 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1935

8/N7/8/Q7/N3P3/1k6/2p5/2K5

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka2
      • 2.Sc5#
    • 1...Ka3
      • 2.Sc5#
    • 1...Kc4
      • 2.Qc3#
  • Tries
    • 1.Sb5?
      • 1...Ka2
        • 2.Sc5#
      • 1...Kc4!
    • 1.Sc8?
      • 1...Ka2
        • 2.Sc5#
      • 1...Ka3
        • 2.Sc5#
      • 1...Kc4!
    • 1.Qc3+?
      • 1...Ka2
        • 2.Qb2#
      • 1...Kxa4!
    • 1.Qb4+?
      • 1...Ka2
        • 2.Qb2#
      • 1...Kxb4!
    • 1.Qb5+?
      • 1...Ka2
        • 2.Qb2#
      • 1...Ka3!
    • 1.e5?
      • 1...Ka2
        • 2.Sc5#
      • 1...Ka3
        • 2.Sc5#
      • 1...Kc4!
  • Keys
    • 1.Sc6!
      • 1...Ka2
        • 2.Sc5#
      • 1...Ka3
        • 2.Sc5#
      • 1...Kc4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR(D)+S(B)
    • K(b);P-FLIGHT::QAR(D)+S(B)
    • K(b);S_FLIGHT::QAR1(D)
  • Tries
    • Try
      • S(E);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+S(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+S(B)
        • K(b);P-FLIGHT::QAR(D)+S(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(C);
      • Vars
        • K(b);S_FLIGHT::QAR(D)+S(B)
        • K(b);P-FLIGHT::QAR(D)+S(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(b);S_FLIGHT::QAR(D)+S(B)
      • K(b);P-FLIGHT::QAR(D)+S(B)
      • K(b);S_FLIGHT::QAB1(D)
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