MESON Chess Problem Database

Problem Display
PID: 242090 (8/8/8/1K6/1B1p4/1k6/b7/2Q5 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/8/8/1K6/1B1p4/1k6/b7/2Q5

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb1#
    • 1...d3
      • 2.Qc3#
  • Tries
    • 1.Ka5?
      • 1...d3
        • 2.Qc3#
      • 1...Bb1!
    • 1.Be1?
      • 1...d3
        • 2.Qc3#
      • 1...Bb1!
    • 1.Bd2?
      • 1...d3
        • 2.Qc3#
      • 1...Bb1!
    • 1.Ba5?
      • 1...d3
        • 2.Qc3#
      • 1...Bb1!
    • 1.Qd2?
      • 1...d3
        • 2.Qc3#
      • 1...Bb1!
    • 1.Qa1?
      • 1...d3
        • 2.Qc3#
      • 1...Bb1
        • 2.Qxb1#
      • 1...Kc2!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAR2(A),XB(a)
    • P(c);N_GUARD::QAR1(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Vars
        • P(c);N_GUARD::QAR1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Vars
        • P(c);N_GUARD::QAR1(A)
        • B(a);N_GUARD::QAR2(A),XB(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAR1(A)
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