MESON Chess Problem Database

Problem Display
PID: 32847 (3R1K1B/8/8/rPp2P2/R2p3P/8/P4p2/kn3Q1q w - - 0 1)

Davis, Henry Hosey

Science Monthly, 1885

3R1K1B/8/8/rPp2P2/R2p3P/8/P4p2/kn3Q1q

#2

9 + 7

3360 Simple Two-move Themes 1924
20 De Problemist 1929
14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Rdxd4!
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rdb4#
        • 2.Rdc4#
        • 2.Re4#
        • 2.Rf4#
        • 2.Rg4#
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Qa8+
        • 2.Rd8#
      • 1...Ra8+
        • 2.Rd8#
      • 1...Kb2
        • 2.Rd2#
      • 1...Qxf1
        • 2.Rd1#
      • 1...Qxh4
        • 2.Rxh4#
      • 1...Rxa4
        • 2.Rxa4#
      • 1...Rxb5
        • 2.Rdb4#
      • 1...cxd4
        • 2.Bxd4#
      • 1...Qg2
        • 2.Rg4#
      • 1...Qf3
        • 2.Rd3#
      • 1...Qe4
        • 2.Rxe4#
      • 1...Qd5
        • 2.Rxd5#
      • 1...Qc6
        • 2.Rd6#
      • 1...Qb7
        • 2.Rd7#
      • 1...Qg1
        • 2.Rg4#
      • 1...Qh2
        • 2.Rf4#
      • 1...Qh3
        • 2.Rd3#
      • 1...Ra6
        • 2.Rd6#
      • 1...Ra7
        • 2.Rd7#
      • 1...c4
        • 2.Rdxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 20
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(G);XP(e)
    • Threat
      • DUALS(12)
    • Vars
      • Q(c);CHECK::B(I)+R(G)
      • R(f);CHECK::B(I)+R(G)
      • K(a);N_SPINS(b),S_FLIGHT::B(I)+R(G),DCHECK
      • Q(c);N_SPINS(b),XQ(A)::B(I)+R(G)
      • Q(c);OGATE,XP(D)::B(I)+R(G),XQ(c)
      • R(f);OGATE,XR(C)::B(I)+R(G),XR(f)
      • R(f);XP(E)::B(I)+R(G)
      • P(g);OGATE,P_SPINP(g),XR(G)::B(I),XP(g)
      • Q(c);::B(I)+R(G)
      • Q(c);P_PINP(F)::B(I)+R(G)
      • Q(c);::B(I)+R(G),XQ(c)
      • R(f);::B(I)+R(G)
      • P(g);::B(I)+R(G),XP(g)
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Developed and maintained by Brian Stephenson.
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