MESON Chess Problem Database

Problem Display
PID: 44419 (8/Kp6/p3rp2/3BR3/p2B2P1/1p3p2/qQ3Rb1/7k w - - 0 1)

Hawkins, Xenophon

Maryland Chess Review, 1874

8/Kp6/p3rp2/3BR3/p2B2P1/1p3p2/qQ3Rb1/7k

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Rxf1#
      • 2.Rh2#
    • 1...Bh3
      • 2.Rh2#
  • Tries
    • 1.Rxg2?
      • threat
        • 2.Rg1#
        • 2.Rh2#
        • 2.Rh5#
      • 1...Rxe5
        • 2.Rg1#
        • 2.Rh2#
      • 1...fxg2
        • 2.Rh5#
      • 1...fxe5
        • 2.Rg1#
        • 2.Rh2#
      • 1...Qb1
        • 2.Rh2#
        • 2.Rh5#
      • 1...Qa1
        • 2.Rh2#
        • 2.Rh5#
      • 1...f2
        • 2.Rh5#
      • 1...f5
        • 2.Rg1#
        • 2.Rh2#
      • 1...Qxb2!
    • 1.Rh5+?
      • 1...Bh3
        • 2.Rf1#
        • 2.Rh2#
      • 1...Kg1!
    • 1.Qc1+?
      • 1...Bf1
        • 2.Qxf1#
      • 1...Kh2!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Rh3#
      • 1...Kh2
        • 2.Rh5#
      • 1...Bxf3
        • 2.Bxf3#
        • 2.Rh5#
      • 1...Bh3
        • 2.Rf1#
        • 2.Rxh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(c);OGATE,P_SPINP(e)::R1(B)
  • Tries
    • Try
      • R(B);XB(c)
      • Threat
        • DUALS(3)
      • Vars
        • P(e);P_SPINP(e),XR(B)::R(F)
        • P(e);::R(F)
      • Refutation
        • Q(b);XQ(A)
    • Try
      • R(F);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c),P_SPINP(e)::QAR2(A),XB(c)
      • Refutation
        • K(a);P-FLIGHT,P_SPINB(c)
  • Actual
    • R(B);XP(e)
    • Threat
      • R(B)
    • Vars
      • K(a);P-FLIGHT,P_SPINB(c)::R(F)
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