MESON Chess Problem Database

Problem Display
PID: 202576 (1b2K3/8/1Q6/3Bkp2/2Pp1N1n/1r6/6R1/8 w - - 0 1)

Dalton, William Robert Inge

Brisbane Courier, 1923

1b2K3/8/1Q6/3Bkp2/2Pp1N1n/1r6/6R1/8

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qxd4#
    • 1...Rb1
      • 2.Sd3#
    • 1...Rb2
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Rb4
      • 2.Sd3#
    • 1...Rb5
      • 2.Sd3#
    • 1...Sxg2
      • 2.Sg6#
    • 1...Sf3
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qe6#
      • 1...Bd6
        • 2.Qxd4#
      • 1...Rxb6!
    • 1.Re2+?
      • 1...Re3
        • 2.Sd3#
      • 1...Kxf4!
    • 1.Qc7+?
      • 1...Kf6
        • 2.Sh5#
        • 2.Qe7#
        • 2.Qg7#
      • 1...Bxc7!
    • 1.Qf6+?
      • 1...Kxf4
        • 2.Qxd4#
      • 1...Kxf6!
    • 1.Qxb8+?
      • 1...Kf6
        • 2.Sh5#
        • 2.Qd6#
      • 1...Rxb8+!
  • Keys
    • 1.Ke7!
      • 1...Bd6+
        • 2.Qxd6#
      • 1...Sg6+
        • 2.Sxg6#
      • 1...Kxf4
        • 2.Qxd4#
      • 1...Rxb6
        • 2.Sd3#
      • 1...Sxg2
        • 2.Sg6#
      • 1...Rb1
        • 2.Sd3#
      • 1...Rb2
        • 2.Sd3#
      • 1...Ra3
        • 2.Qxb8#
      • 1...Rc3
        • 2.Qxb8#
      • 1...Rd3
        • 2.Sxd3#
        • 2.Qxb8#
      • 1...Re3
        • 2.Qxb8#
      • 1...Rf3
        • 2.Qxb8#
      • 1...Rg3
        • 2.Qxb8#
      • 1...Rh3
        • 2.Qxb8#
      • 1...Rb4
        • 2.Sd3#
      • 1...Rb5
        • 2.Sd3#
      • 1...Ba7
        • 2.Qc7#
        • 2.Qd6#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Sf3
        • 2.Sg6#
      • 1...d3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • K(d);S_FLIGHT,XS(C)::QAR2(E),XP(b)
    • R(a);N_GUARD::S(C)
    • R(a);N_GUARD::S(C),XR(a)
    • S(c);N_GUARD,XR(A)::S(C)
    • S(c);N_GUARD::S(C)
    • S(c);N_GUARD::S(C),XS(c)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(E)
      • Vars
        • B(f);SBLOCK::QAB1(E),XP(b)
      • Refutation
        • R(a);XQ(E)
    • Try
      • R(A);CHECK
      • Vars
        • R(a);P_SPINR(a)::S(C)
      • Refutation
        • K(d);S_FLIGHT,XS(C)
    • Try
      • Q(E);CHECK
      • Refutation
        • B(f);XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);OGATE,P_SPINP(e),S_FLIGHT,XS(C)::QAR2(E),XP(b)
      • Refutation
        • K(d);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK,XB(f)
      • Refutation
        • R(a);CHECK,XQ(E)
  • Actual
    • K(F);P-FLIGHT
    • Vars
      • B(f);CHECK,N_GUARD::QAB1(E),XB(f)
      • S(c);CHECK,N_GUARD::S(C),XS(c)
      • K(d);S_FLIGHT,XS(C)::QAR2(E),XP(b)
      • R(a);N_GUARD,XQ(E)::S(C)
      • S(c);N_GUARD,XR(A)::S(C)
      • R(a);N_GUARD::S(C)
      • R(a);N_GUARD::QAB(E),XB(f)
      • B(f);N_GUARD::QAB(E),XB(f)
      • S(c);N_GUARD::S(C)
      • P(b);OGATE::QAR2(E)
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