MESON Chess Problem Database

Problem Display
PID: 165472 (8/8/B4R2/1q3b2/8/2p3Qp/R3PBP1/1N3kNK w - - 0 1)

Barnes, Barry Peter

The Problemist, 2017

8/8/B4R2/1q3b2/8/2p3Qp/R3PBP1/1N3kNK

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Bxe2#
    • 1...c2
      • 2.Sd2#
    • 1...hxg2+
      • 2.Qxg2#
  • Keys
    • 1.Ra1!
      • threat
        • 2.Sd2#
      • 1...hxg2+
        • 2.Qxg2#
      • 1...Qxb1
        • 2.e4#
      • 1...Bxb1
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(d);OGATE,P_SPINQ(d),XP(E)::B(I),XQ(d)
    • P(b);N_GUARD::S(A)
    • P(c);CHECK,OGATE,XP(G)::QAB1(H),XP(c)
  • Actual
    • R(D);
    • Threat
      • R(D)+S(A),DCHECK
    • Vars
      • P(c);CHECK,OGATE,XP(G)::QAB1(H),XP(c)
      • Q(d);P_SPINQ(d),XS(A)::B(I)+P(E)
      • B(e);OGATEB,P_SPINB(e),XS(A)::R(J)+B(F)
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Developed and maintained by Brian Stephenson.
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