MESON Chess Problem Database

Problem Display
PID: 73116 (2R5/1pq2NK1/2krPR2/Pp2rQ2/1Bn5/2N5/8/8 w - - 0 1)

Vreughenhil, D

Tijdschrift vd KNSB, 1936

2R5/1pq2NK1/2krPR2/Pp2rQ2/1Bn5/2N5/8/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qxb5#
      • 2.Qc5#
    • 1...Re2
      • 2.Qxb5#
      • 2.Qc5#
    • 1...Re3
      • 2.Qxb5#
      • 2.Qc5#
    • 1...Re4
      • 2.Qxb5#
      • 2.Qc5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rexe6
      • 2.Qxb5#
  • Keys
    • 1.e7!
      • threat
        • 2.Sd8#
      • 1...Qxc8
        • 2.Qxc8#
      • 1...Rxf5
        • 2.e8Q#
        • 2.e8B#
      • 1...Rxe7
        • 2.Qxb5#
      • 1...Sxa5
        • 2.Rxd6#
      • 1...Ree6
        • 2.Qxb5#
      • 1...Rde6
        • 2.e8Q#
        • 2.e8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE::QAR1(D),XR(c)
    • R(c);OGATE,XP(E)::QAB1(D),XP(b)
  • Actual
    • P(E);N_SPINS(G),P_PINR(e)
    • Threat
      • S(G)
    • Vars
      • Q(g);N_SPINQ(g),OGATE,XR(I)::QAR2(D),XQ(g)
      • R(c);N_GUARD,XQ(D)::P=Q
      • R(c);OGATE,P_PINS(G),XP(E)::QAB1(D),XP(b)
      • S(a);N_GUARD,XP(C)::R1(F),XR(e)
      • R(c);N_SPINR(e),OGATE::QAB1(D),XP(b)
      • R(e);S_CUTR(c)::P=Q
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