MESON Chess Problem Database

Problem Display
PID: 257828 (1Q6/8/K7/8/2B5/5R1p/6p1/6k1 w - - 0 1)

Labai, Zoltan

3rd HM., Nedelna Pravda, 1989

(First published on Fri Feb 24 1989)

1Q6/8/K7/8/2B5/5R1p/6p1/6k1

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...h2
      • 2.Qb1#
  • Tries
    • 1.Ka5?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Ka7?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Ba2?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Be2?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Bd3?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Be6?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Bf7?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Bg8?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Rf4?
      • 1...Kh2
        • 2.Rf1#
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Rf5?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Rf6?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Rf7?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Rf8?
      • 1...h2
        • 2.Qb1#
      • 1...Kh1!
    • 1.Qf4?
      • 1...h2
        • 2.Qc1#
      • 1...Kh1!
    • 1.Qe5?
      • 1...h2
        • 2.Qa1#
        • 2.Qe1#
      • 1...Kh1!
    • 1.Qd6?
      • 1...h2
        • 2.Qd1#
      • 1...Kh1!
    • 1.Qa7+?
      • 1...Kh1
        • 2.Rxh3#
      • 1...Kh2!
    • 1.Qb6+?
      • 1...Kh1
        • 2.Rxh3#
      • 1...Kh2!
  • Keys
    • 1.Bd5!
      • 1...Kh1
        • 2.Rf1#
      • 1...h2
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR(D)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b),S_FLIGHT::QAB(D)+R(A)
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • P(c);SBLOCK::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(A),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(A),XP(c)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);N_GUARD,P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::R(A)
      • P(c);SBLOCK::QAR(D)
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