MESON Chess Problem Database

Problem Display
PID: 45358 (B2R3Q/3N4/1pr1Pp2/3Pb3/4k2p/8/1N6/5RBK w - - 0 1)

Stevenson, Edward

Double Pin-Mate after a Black King Move, 1980

B2R3Q/3N4/1pr1Pp2/3Pb3/4k2p/8/1N6/5RBK

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6
      • 2.dxe6#
      • 2.d6#
    • 1...f5
      • 2.Qxe5#
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qf3#
      • 1...Kxd5
        • 2.Sc5#
      • 1...Bf4
        • 2.Sxf6#
      • 1...Rc3
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATE::QAR1(J),XB(c)
  • Actual
    • Q(J);
    • Threat
      • QAB1(J)
    • Vars
      • K(a);P_SPINB(c),P_SPINR(e),S_FLIGHT,XP(E)::R(I)+S(G)
      • B(c);N_GUARD::S(G),XP(f)
      • R(e);::QAB1(J)
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