MESON Chess Problem Database

Problem Display
PID: 59587 (1RbR1b2/3n2rB/5pn1/Q7/1N3k1p/K3pPp1/1B4P1/8 w - - 0 1)

Groeneveld, Cornelis

The Problemist, 2005

1RbR1b2/3n2rB/5pn1/Q7/1N3k1p/K3pPp1/1B4P1/8

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Sd3#
    • 1...Bxb4+
      • 2.Rxb4#
    • 1...Se7
      • 2.Sd3#
    • 1...Sh8
      • 2.Qf5#
    • 1...Sb6
      • 2.Rd4#
    • 1...Sxb8
      • 2.Rd4#
    • 1...e2
      • 2.Bc1#
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qg4#
      • 1...Bxb4+
        • 2.Rxb4#
      • 1...Sxb8
        • 2.Rd4#
      • 1...e2
        • 2.Bc1#
      • 1...Sge5
        • 2.Qf5#
      • 1...Se7
        • 2.Sd3#
      • 1...Sh8
        • 2.Qf5#
      • 1...Sc5
        • 2.Sd5#
      • 1...Sde5
        • 2.Rd4#
      • 1...Sb6
        • 2.Rd4#
      • 1...f5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(h);N_PINS(E)::S(E)
    • B(j);CHECK,OGATE,XS(E)::R(H),XB(j)
    • S(f);N_PINS(E)::S(E)
    • S(f);::QAR1(F)
    • S(g);OGATE::R(I)
    • S(g);OGATE,XR(H)::R(I)
    • P(a);OGATEB::B(A)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • B(j);CHECK,OGATE,XS(E)::R(H),XB(j)
      • S(g);OGATE,XR(H)::R(I)
      • P(a);OGATEB::B(A)
      • S(f);::QAR1(F)
      • S(f);N_PINS(E)::S(E)
      • S(g);N_PINS(E)::S(E)
      • S(g);OGATE::R(I)
      • P(e);SBLOCK::QAB(F)
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