MESON Chess Problem Database

Problem Display
PID: 169428 (8/3Qn3/1Rp5/4p3/K2Pk3/2p1P1R1/2p2P2/4nB2 w - - 0 1)

Hawes, Frederick Thomas

Australasian Chess Magazine, 1919

8/3Qn3/1Rp5/4p3/K2Pk3/2p1P1R1/2p2P2/4nB2

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Bg2#
    • 1...Sf3
      • 2.Rg4#
    • 1...Sd5
      • 2.Qh7#
    • 1...Sf5
      • 2.Qxc6#
    • 1...exd4
      • 2.Qe6#
  • Tries
    • 1.Qxc6+?
      • 1...Kf5
        • 2.Bh3#
      • 1...Sd5
        • 2.Qg6#
      • 1...Sxc6!
    • 1.Qe6?
      • threat
        • 2.Qxe5#
      • 1...Sd3
        • 2.Bg2#
      • 1...Sf3
        • 2.Rg4#
      • 1...Sg6!
  • Keys
    • 1.Rb4!
      • threat
        • 2.d5#
      • 1...exd4
        • 2.Qe6#
      • 1...Sd3
        • 2.Bg2#
      • 1...Sf3
        • 2.Rg4#
      • 1...Sd5
        • 2.Qh7#
      • 1...Sf5
        • 2.Qxc6#
      • 1...c5
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,SBLOCK::B(A)
    • S(a);SBLOCK::R(D)
    • S(g);OGATE,SBLOCK::QAB(H)
    • S(g);N_GUARD,SBLOCK::QAB(H),XP(f)
    • P(e);OGATEB,XP(F)::QAR2(H)
  • Tries
    • Try
      • Q(H);CHECK,XP(f)
      • Vars
        • K(d);S_FLIGHT::B(A)
        • S(g);N_GUARD,P_SPINS(g),SBLOCK::QAB(H)
      • Refutation
        • S(g);XQ(H)
    • Try
      • Q(H);P_PINP(e)
      • Threat
        • QAR1(H),XP(e)
      • Vars
        • S(a);N_GUARD,SBLOCK::B(A)
        • S(a);SBLOCK::R(D)
      • Refutation
        • S(g);
  • Actual
    • R(G);
    • Threat
      • R(G)+P(F)
    • Vars
      • P(e);OGATEB,P_SPINP(e),XP(F)::QAR2(H)
      • S(a);N_GUARD,SBLOCK::B(A)
      • S(a);SBLOCK::R(D)
      • S(g);OGATE,SBLOCK::QAB(H)
      • S(g);N_GUARD,SBLOCK::QAB(H),XP(f)
      • P(f);OGATE::R(G)+P(F),XP(f)
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