MESON Chess Problem Database

Problem Display
PID: 184432 (B1N4K/1RP5/4p1P1/2pk1p2/2p5/4PP2/1r4R1/b6Q w - - 0 1)

Alexander, Frederick Forrest Lawrie

British Chess Magazine, 1916

B1N4K/1RP5/4p1P1/2pk1p2/2p5/4PP2/1r4R1/b6Q

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rb6#
  • Keys
    • 1.f4!
      • threat
        • 2.Rgxb2#
        • 2.Rc2#
        • 2.Rd2#
        • 2.Re2#
        • 2.Rf2#
        • 2.Rbxb2#
        • 2.Rb3#
        • 2.Rb4#
        • 2.Rb5#
        • 2.Rb6#
      • 1...Rb1+
        • 2.Rbb2#
      • 1...Ra2+
        • 2.Rgb2#
      • 1...Rc2+
        • 2.Rb2#
      • 1...Rd2+
        • 2.Rb2#
      • 1...Re2+
        • 2.Rb2#
      • 1...Rf2+
        • 2.Rb2#
      • 1...Rxg2+
        • 2.Rb2#
      • 1...Rb3+
        • 2.Rb2#
      • 1...Rb4+
        • 2.Rb2#
      • 1...Rb5+
        • 2.Rb2#
      • 1...Rb6+
        • 2.Rb2#
      • 1...Rxb7+
        • 2.Rb2#
      • 1...Ke4
        • 2.Rb3#
      • 1...Kc6
        • 2.Rd2#
      • 1...c3
        • 2.Rb4#
      • 1...e5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • P(g);SBLOCK::B(H)+R(F)
  • Actual
    • P(D);
    • Threat
      • DUALS(10)
    • Vars
      • R(b);CHECK::B(H)+R(F)
      • R(b);CHECK::QAB(A)+R(B)
      • R(b);CHECK,P_SPINR(b),XR(B)::B(H)+R(F)
      • R(b);CHECK,P_SPINR(b),XR(F)::QAB(A)+R(B)
      • K(e);S_FLIGHT::B(H)+R(F)
      • K(e);S_FLIGHT::QAB(A)+R(B)
      • P(c);::B(H)+R(F)
      • P(g);::B(H)+R(F)
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