MESON Chess Problem Database

Problem Display
PID: 47357 (8/3N4/B7/2R5/8/4k3/7K/7Q w - - 0 1)

Coitinho, J

Het Belgisch Schaakbord (L'Echiquier Belge), 1982

8/3N4/B7/2R5/8/4k3/7K/7Q

#2

5 + 1

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kd2
      • 2.Qc1#
  • Tries
    • 1.Kg3?
      • 1...Kd2
        • 2.Qc1#
      • 1...Kd4!
    • 1.Rc3+?
      • 1...Kd2
        • 2.Qc1#
      • 1...Kf2
        • 2.Rf3#
        • 2.Qf1#
        • 2.Qg1#
      • 1...Kd4
        • 2.Rd3#
      • 1...Kf4!
    • 1.Re5+?
      • 1...Kf2
        • 2.Re2#
        • 2.Qg2#
        • 2.Qf1#
      • 1...Kd4
        • 2.Qa1#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd2!
    • 1.Qf3+?
      • 1...Kd2
        • 2.Qe2#
      • 1...Kd4
        • 2.Rc4#
        • 2.Rd5#
        • 2.Qd3#
        • 2.Qf4#
      • 1...Kxf3!
    • 1.Qe4+?
      • 1...Kd2
        • 2.Qe2#
      • 1...Kf2
        • 2.Rc2#
        • 2.Rf5#
        • 2.Qe2#
      • 1...Kxe4!
    • 1.Qf1?
      • 1...Kd2
        • 2.Qe2#
        • 2.Qc1#
      • 1...Kd4
        • 2.Qd3#
        • 2.Qf4#
      • 1...Ke4!
  • Keys
    • 1.Sf6!
      • 1...Kd2
        • 2.Qc1#
      • 1...Kf2
        • 2.Sg4#
      • 1...Kd4
        • 2.Qg1#
      • 1...Kf4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::QAR1(A)
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