MESON Chess Problem Database

Problem Display
PID: 155445 (3K2B1/3p1b2/1p1k4/2RPNr2/N3pp2/n3P3/1Q6/8 w - - 0 1)

Daniel, Arthur William

British Chess Magazine, 1905

3K2B1/3p1b2/1p1k4/2RPNr2/N3pp2/n3P3/1Q6/8

#2

8 + 8

3713 Snap 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Qxb6#
    • 1...Rg5
      • 2.Sxf7#
    • 1...Rh5
      • 2.Sxf7#
    • 1...Bxd5
      • 2.Rxd5#
    • 1...Sb1
      • 2.Sc4#
    • 1...Sc2
      • 2.Sc4#
    • 1...Sc4
      • 2.Sxc4#
    • 1...Sb5
      • 2.Sc4#
  • Tries
    • 1.Rc6+?
      • 1...Kxd5
        • 2.Sxb6#
        • 2.Qd4#
      • 1...dxc6!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sxe4#
      • 1...Kxc5
        • 2.Qxa3#
      • 1...Kxe5
        • 2.Sb5#
      • 1...Rxe5
        • 2.Qxb6#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...bxc5
        • 2.Qb8#

Anticipated by 141348(1904)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(d);SBLOCK,XS(F)::QAR2(A),XP(e)
    • R(d);N_GUARD::S(F),XB(h)
    • B(h);OGATE,XP(E)::R1(D),XB(h)
    • S(a);N_GUARD::S(F)
    • S(a);N_GUARD::S(F),XS(a)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • P(g);XR(D)
  • Actual
    • S(C);
    • Threat
      • S(C),XP(b)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XR(D)::QAB(A),XS(a)
      • K(f);S_FLIGHT,XS(F)::QAB(A)+S(C)
      • R(d);SBLOCK,XS(F)::QAR2(A),XP(e)
      • B(h);OGATE,XP(E)::R1(D),XB(h)
      • P(e);OGATE,SBLOCK,XR(D)::QAB(A)
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