MESON Chess Problem Database

Problem Display
PID: 152932 (5b2/4p2b/B6r/7r/pQ2pp1N/Kp1p4/3R1Bp1/3N1k1q w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1942

5b2/4p2b/B6r/7r/pQ2pp1N/Kp1p4/3R1Bp1/3N1k1q

#2

7 + 13

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Se3#
  • Tries
    • 1.Re2?
      • threat
        • 2.Re1#
        • 2.Qe1#
      • 1...dxe2
        • 2.Qe1#
      • 1...e5
        • 2.Re1#
      • 1...d2
        • 2.Re1#
      • 1...e6
        • 2.Re1#
      • 1...Kxe2!
  • Keys
    • 1.Rxd3!
      • threat
        • 2.Qe1#
      • 1...Ke2
        • 2.Rd2#
      • 1...e5
        • 2.Rd6#
      • 1...e6
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(h);N_GUARD::S(A)
  • Tries
    • Try
      • R(B);N_PINP(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);P_SPINP(e),XR(B)::QAR1(E)
        • P(k);P_PINQ(E)::R1(B)
        • P(e);::B(G)+R(B),DCHECK
      • Refutation
        • K(a);P_SPINP(e),S_FLIGHT,XR(B)
  • Actual
    • R(B);XP(e)
    • Threat
      • QAR1(E)
    • Vars
      • K(a);S_FLIGHT::B(G)+R(B),DCHECK
      • P(k);P_PINQ(E),S_CUTR(i)::B(G)+R(B)
      • P(k);P_PINQ(E),S_CUTR(j)::B(G)+R(B)
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