MESON Chess Problem Database

Problem Display
PID: 203675 (1b5K/4p3/p6R/Rp2k3/3N3Q/1p6/1q1p4/1n2r3 w - - 0 1)

Thomson, Robert Gavin

Newcastle Weekly Chronicle, 1925

1b5K/4p3/p6R/Rp2k3/3N3Q/1p6/1q1p4/1n2r3

#2

5 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Rh5#
  • Keys
    • 1.Sxb5!
      • threat
        • 2.Sa3#
        • 2.Sc3#
        • 2.Sd4#
        • 2.Sd6#
        • 2.Sa7#
        • 2.Sc7#
      • 1...Kd5+
        • 2.Sc3#
      • 1...Kf5+
        • 2.Sd4#
      • 1...axb5
        • 2.Rxb5#
      • 1...d1Q
        • 2.Sd4#
      • 1...d1R
        • 2.Sd4#
      • 1...Qa1
        • 2.Sa3#
      • 1...Qc1
        • 2.Sc3#
      • 1...Qa3
        • 2.Sxa3#
      • 1...Qc3
        • 2.Sxc3#
      • 1...Qd4
        • 2.Sxd4#
      • 1...Qa2
        • 2.Sa3#
      • 1...Qc2
        • 2.Sc3#
      • 1...Rc1
        • 2.Sc3#
      • 1...Re4
        • 2.Qg5#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Ba7
        • 2.Sxa7#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Sa3
        • 2.Sxa3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...e6
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
    • B(j);SBLOCK::R(D)
  • Actual
    • S(A);XP(f)
    • Threat
      • DUALS(6)
    • Vars
      • K(g);CHECK,P-FLIGHT::R(C)+S(A),DCHECK
      • P(h);OGATE,P_SPINP(h),XS(A)::R(C),XP(h)
      • P(d);::R(C)+S(A)
      • Q(c);::R(C)+S(A)
      • Q(c);::R(C)+S(A),XQ(c)
      • R(b);::R(C)+S(A)
      • R(b);SBLOCK::QAR2(B)
      • B(j);::R(C)+S(A),XB(j)
      • S(a);::R(C)+S(A),XS(a)
      • P(i);SBLOCK::R(D)
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