MESON Chess Problem Database

Problem Display
PID: 4567 (3N1b2/6N1/b1q5/1pPkp1p1/2R1R3/3P2P1/2K2B2/3Q4 w - - 0 1)

Laws, Benjamin Glover

3rd Prize, Brief, 1880

3N1b2/6N1/b1q5/1pPkp1p1/2R1R3/3P2P1/2K2B2/3Q4

#2

10 + 7

3316 Chess Problem Text Book 1887
3571 An English Bohemian 1933

SOLUTION

  • SOUND
  • Tries
    • 1.Rcd4+?
      • 1...Kxc5
        • 2.Rd7#
      • 1...exd4!
  • Keys
    • 1.d4!
      • threat
        • 2.dxe5#
      • 1...Kxc4
        • 2.d5#
      • 1...Kxe4
        • 2.Qh1#
      • 1...Qxc5
        • 2.dxc5#
      • 1...Bxc5
        • 2.dxc5#
      • 1...bxc4
        • 2.Rxe5#
      • 1...exd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK,P_SPINP(H)
      • Vars
        • K(b);OGATE,P-FLIGHT,XP(H)::B(C)+R(F)
      • Refutation
        • P(c);XR(F)
  • Actual
    • P(D);
    • Threat
      • QAR(A)+P(D),XP(c)
    • Vars
      • K(b);OGATE,S_FLIGHT,XR(F)::R(G)+P(D)
      • K(b);OGATEB,S_FLIGHT,XR(G)::QAB(A)
      • Q(f);OGATE,P_PINR(F),XP(H)::QAR(A)+P(D),XQ(f)
      • B(g);OGATE,XP(H)::QAR(A)+P(D),XB(g)
      • P(a);SBLOCK,XR(F)::R1(G),XP(c)
      • P(c);OGATE,P_SPINP(c),XP(D)::QAR1(A),XP(c)
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