MESON Chess Problem Database

Problem Display
PID: 84526 (8/8/R7/2pp4/2k5/7Q/K7/4B3 w - - 0 1)

Szwedowski, Leopold Mieczyslaw

Melnichenko JT, 2004

8/8/R7/2pp4/2k5/7Q/K7/4B3

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qb3#
  • Tries
    • 1.Bf2?
      • threat
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...Kb5!
    • 1.Ra5?
      • threat
        • 2.Qc3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rb6?
      • threat
        • 2.Qc3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rd6?
      • 1...Kb5
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rf6?
      • 1...Kb5
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rg6?
      • 1...Kb5
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Rh6?
      • 1...Kb5
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Qa3?
      • 1...Kb5
        • 2.Qa4#
      • 1...d4
        • 2.Qb3#
      • 1...Kd4!
    • 1.Qe3?
      • 1...d4
        • 2.Qb3#
      • 1...Kb5!
  • Keys
    • 1.Re6!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kb5
        • 2.Qb3#
      • 1...d4
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAB1(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • P(c);::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(a);P-FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAR2(C)
      • P(c);SBLOCK::QAB1(C)
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