MESON Chess Problem Database

Problem Display
PID: 64084 (8/8/4N3/1N5Q/4k3/8/4p3/4K3 w - - 0 1)

Willemsens, Luis Cornelis

Schakend Nederland, 1962

8/8/4N3/1N5Q/4k3/8/4p3/4K3

#2

4 + 2

5227 Schaak..., maar raak! 1969

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qxe2#
    • 1...Ke3
      • 2.Qxe2#
  • Tries
    • 1.Sc3+?
      • 1...Ke3
        • 2.Qxe2#
        • 2.Qh3#
      • 1...Kd3!
    • 1.Sbd4?
      • 1...Ke3
        • 2.Qxe2#
        • 2.Qf3#
      • 1...Kd3!
    • 1.Sd6+?
      • 1...Ke3
        • 2.Qxe2#
        • 2.Qh3#
      • 1...Kd3!
    • 1.Sa7?
      • 1...Ke3
        • 2.Qxe2#
      • 1...Kd3!
    • 1.Sbc7?
      • 1...Ke3
        • 2.Qxe2#
      • 1...Kd3!
    • 1.Sed4?
      • 1...Kd3
        • 2.Qxe2#
      • 1...Ke3
        • 2.Qf3#
      • 1...Kf4!
  • Keys
    • 1.Sa3!
      • 1...Kd3
        • 2.Qf3#
      • 1...Ke3
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(C),XP(a)
    • K(b);P-FLIGHT::QAR1(C),XP(a)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::QAR1(C),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);P-FLIGHT::QAR1(C),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAB1(C),XP(a)
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(b);S_FLIGHT::QAR2(C)
      • K(b);P-FLIGHT::QAR1(C),XP(a)
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Developed and maintained by Brian Stephenson.
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