MESON Chess Problem Database

Problem Display
PID: 45375 (5Kb1/2Rp2p1/1N1pk3/3N1p2/3n1b2/8/4p2B/Q2rRr2 w - - 0 1)

Stevenson, Edward

Double Pin-Mate after a Black King Move, 1980

5Kb1/2Rp2p1/1N1pk3/3N1p2/3n1b2/8/4p2B/Q2rRr2

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Rxe2#
    • 1...Sf3
      • 2.Sxf4#
  • Keys
    • 1.Rxd7!
      • threat
        • 2.Re7#
      • 1...Ke5
        • 2.Rxe2#
      • 1...Bg5
        • 2.Rxd6#
      • 1...Sc6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(h);P-FLIGHT,P_SPINB(e),P_SPINS(d)::R(B),XP(c)
    • S(d);S_CUTR(b)::S(D),XB(e)
  • Actual
    • R(F);XP(i)
    • Threat
      • R1(F)
    • Vars
      • K(h);P-FLIGHT,P_SPINB(e),P_SPINS(d)::R(B),XP(c)
      • B(e);N_GUARD::R1(F),XP(g)
      • S(d);::S(D)
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Developed and maintained by Brian Stephenson.
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