MESON Chess Problem Database

Problem Display
PID: 241903 (7b/5Q1p/5p1k/5K2/5N2/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1932

7b/5Q1p/5p1k/5K2/5N2/8/8/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Qh5#
  • Tries
    • 1.Ke4?
      • 1...Kg5
        • 2.Qh5#
      • 1...Bg7
        • 2.Qh5#
      • 1...f5+!
    • 1.Kg4?
      • 1...Bg7
        • 2.Qh5#
      • 1...f5+!
    • 1.Sg6?
      • 1...hxg6+
        • 2.Qxg6#
      • 1...Kh5
        • 2.Qxh7#
      • 1...Bg7!
    • 1.Qa2?
      • 1...Bg7
        • 2.Qh2#
      • 1...Kg7!
    • 1.Qb3?
      • 1...Bg7
        • 2.Qh3#
      • 1...Kg7!
    • 1.Qd5?
      • 1...Bg7
        • 2.Qh1#
      • 1...Kg7!
    • 1.Qe8?
      • 1...Bg7
        • 2.Qh5#
      • 1...Kg7!
  • Keys
    • 1.Qb7!
      • 1...Bg7
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK::QAR1(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
        • B(d);SBLOCK::QAR1(C)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);S_FLIGHT
      • Vars
        • B(d);SBLOCK::QAR1(C)
      • Refutation
        • P(a);CHECK
    • Try
      • S(A);
      • Vars
        • P(c);CHECK,OGATE,XS(A)::QAR1(C),XP(c)
        • K(b);P-FLIGHT::QAR2(C),XP(c)
      • Refutation
        • B(d);
    • Try
      • Q(C);
      • Vars
        • B(d);SBLOCK::QAR(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • B(d);SBLOCK::QAR(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • B(d);SBLOCK::QAR(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • B(d);SBLOCK::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • B(d);SBLOCK::QAR(C)
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