MESON Chess Problem Database

Problem Display
PID: 119834 (3n4/8/4N3/4p3/4k3/2P4R/Q6P/3K4 w - - 0 1)

van Beek, Huibrecht

Tijdschrift vd NSB, 0000

3n4/8/4N3/4p3/4k3/2P4R/Q6P/3K4

#2

6 + 3

6490 yacpdb 2009
1101 BCSC Final 2023-2024

SOLUTION

  • SOUND
  • Tries
    • 1.Re3+?
      • 1...Kxe3
        • 2.Qe2#
      • 1...Kf5!
    • 1.Rh4+?
      • 1...Kd3
        • 2.Qd2#
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Sg5#
      • 1...Kxf3
        • 2.Qe2#
      • 1...Sxe6
        • 2.Qa8#
      • 1...Sf7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XR(E)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • S(F)
    • Vars
      • K(a);S_FLIGHT,XR(E)::QAB1(B)
      • S(c);N_GUARD,XS(F)::QAB(B)
      • S(c);N_GUARD::QAB(B)
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