MESON Chess Problem Database

Problem Display
PID: 183057 (5n2/1nN2Q2/4q3/8/b1k1NR2/4K3/P7/4B3 w - - 0 1)

Moen, Kabe

The Problemist Supplement, 2018

5n2/1nN2Q2/4q3/8/b1k1NR2/4K3/P7/4B3

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Qxd5#
    • 1...Sg6
      • 2.Qxe6#
    • 1...Sd7
      • 2.Qxe6#
    • 1...Sh7
      • 2.Qxe6#
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qe2#
      • 1...Qh3+
        • 2.Sg3#
      • 1...Qxe4+
        • 2.Rxe4#
      • 1...Qb6+
        • 2.Sc5#
      • 1...Bd1
        • 2.Qb5#
      • 1...Qg4
        • 2.Sd6#
        • 2.Qd5#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qd7
        • 2.Sd6#
      • 1...Qd6
        • 2.Sxd6#
      • 1...Bc2
        • 2.Qb5#
      • 1...Sc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • Q(c);N_PINS(D),OGATE::QAB1(G),XQ(c)
    • S(e);N_GUARD::QAB(G),XQ(c)
  • Actual
    • Q(G);N_PINQ(c)
    • Threat
      • QAB(G)
    • Vars
      • Q(c);CHECK,N_PINS(D)::R(E)+S(D)
      • Q(c);CHECK,OGATE,P_SPINQ(c),XS(D)::R(E),XQ(c)
      • B(a);N_GUARD::QAB1(G)
      • Q(c);N_GUARD,N_PINS(D)::QAB1(G),XQ(c)
      • Q(c);N_PINS(D)::R(E)+S(D),DCHECK
      • Q(c);N_PINS(D)::R(E)+S(D),DCHECK,XQ(c)
      • S(d);N_GUARD::QAR1(G),XS(d)
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