MESON Chess Problem Database

Problem Display
PID: 51634 (8/p1p5/P1PpR1R1/KQ1b1k1p/P1N3rp/3rp2B/4N3/8 w - - 0 1)

Barrow, John Hugh

Grantham Journal, 1924

8/p1p5/P1PpR1R1/KQ1b1k1p/P1N3rp/3rp2B/4N3/8

#2

10 + 10

5257 Chess Problems by J H Barrow 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sxe3#
    • 1...Rd2
      • 2.Sxe3#
    • 1...Ra3
      • 2.Qxd5#
    • 1...Rb3
      • 2.Qxd5#
    • 1...Rc3
      • 2.Qxd5#
    • 1...Rd4
      • 2.Sxe3#
  • Tries
    • 1.Qc5?
      • 1...Rd1
        • 2.Sxe3#
      • 1...Rd2
        • 2.Sxe3#
      • 1...Ra3
        • 2.Qxd5#
      • 1...Rb3
        • 2.Qxd5#
      • 1...Rc3
        • 2.Qxd5#
      • 1...Rd4
        • 2.Sxe3#
      • 1...dxc5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Sxe3#
      • 1...Bxc4
        • 2.Qf1#
      • 1...Bxe6
        • 2.Qxd3#
      • 1...Be4
        • 2.Ref6#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::S(D),XP(b)
    • R(a);N_GUARD,P_PINP(C)::QAR2(F),XB(e)
    • R(a);N_GUARD::QAR2(F),XB(e)
  • Tries
    • Try
      • Q(F);
      • Vars
        • R(a);N_GUARD::S(D),XP(b)
        • R(a);N_GUARD,P_PINP(C)::QAR2(F),XB(e)
        • R(a);N_GUARD::QAR2(F),XB(e)
      • Refutation
        • P(h);N_SPINB(e),XQ(F)
  • Actual
    • Q(F);N_PINB(e),N_PINR(c),P_PINR(a)
    • Threat
      • S(D),XP(b)
    • Vars
      • B(e);N_GUARD,XS(D)::QAR(F)
      • B(e);N_GUARD,XR(I)::QAB(F),XR(a)
      • B(e);N_SPINR(a),P_SPINR(c),SBLOCK::R1(I)
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