MESON Chess Problem Database

Problem Display
PID: 200374 (1b6/2r5/8/8/RPPkpP2/4R3/b3QK2/n7 w - - 0 1)

Kuijers, LA

Op de Hoogte, 1914

1b6/2r5/8/8/RPPkpP2/4R3/b3QK2/n7

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qd1#
      • 2.Qd2#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Rxe4#
        • 2.Qxe4#
        • 2.Qc3#
      • 1...Rxc4
        • 2.Qd1#
        • 2.Qxe4#
        • 2.Qd2#
      • 1...Bxc4
        • 2.Qxe4#
      • 1...Re7
        • 2.Qc3#
      • 1...Bb1
        • 2.Rxe4#
        • 2.Qc3#
      • 1...Sxc2!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qd5#
      • 1...Kxc4
        • 2.b5#
      • 1...Rxc4
        • 2.Qd1#
      • 1...Bxc4
        • 2.Qe5#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Rd7
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • B(b);SBLOCK,XP(F)::QAR1(A),XP(d)
        • R(e);::QAB1(A)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT,XP(F)::R(D)+P(E)
      • R(e);SBLOCK,XP(F)::QAR(A)
      • B(b);SBLOCK,XP(F)::QAB1(A)
      • R(e);N_GUARD::QAB1(A),XR(e)
      • R(e);N_GUARD::QAB1(A)
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