MESON Chess Problem Database

Problem Display
PID: 56306 (qrbB4/n2R4/r1k5/n7/1p1PP3/1p1QN2B/1K6/8 w - - 0 1)

Wainwright, Joseph CJ

7th Comm., Brisbane Courier, 1916

qrbB4/n2R4/r1k5/n7/1p1PP3/1p1QN2B/1K6/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4+
      • 2.Qxc4#
    • 1...Sb7
      • 2.Qxa6#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Se7#
      • 1...Sc4+
        • 2.Qxc4#
      • 1...Bxd7!
    • 1.Rd6+?
      • 1...Kb7
        • 2.Qxa6#
      • 1...Kxd6!
    • 1.Rc7+?
      • 1...Kd6
        • 2.e5#
      • 1...Kb6!
    • 1.Qxa6+?
      • 1...Rb6
        • 2.Qxb6#
      • 1...Bxa6!
  • Keys
    • 1.e5!
      • 1...Sc4+
        • 2.Qxc4#
      • 1...Bxd7
        • 2.Bg2#
      • 1...Qb7
        • 2.Rd6#
      • 1...Rab6
        • 2.Rc7#
      • 1...Rb5
        • 2.Qg6#
      • 1...Rbb6
        • 2.Rc7#
      • 1...Rb7
        • 2.Rd6#
      • 1...Bb7
        • 2.Rd6#
      • 1...Sb7
        • 2.Qxa6#
      • 1...Sb5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(c);CHECK,N_GUARD::QAR2(B),XS(c)
    • S(c);S_CUTB(i),S_CUTR(h)::QAR2(B),XR(d)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(c);CHECK,N_GUARD::QAR2(B),XS(c)
      • Refutation
        • B(i);XR(G)
    • Try
      • R(G);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(B),XR(d)
      • Refutation
        • K(e);P-FLIGHT,XR(G)
    • Try
      • R(G);CHECK
      • Vars
        • K(e);P-FLIGHT::P(F)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(B);CHECK,XR(d)
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAR1(B),XR(h)
      • Refutation
        • B(i);XQ(B)
  • Actual
    • P(F);
    • Vars
      • S(c);CHECK,N_GUARD::QAR2(B),XS(c)
      • B(i);SBLOCK,XR(G)::B(D)
      • Q(g);SBLOCK::R1(G)
      • R(d);SBLOCK::R1(G)
      • R(h);SBLOCK::QAR(B)
      • R(h);SBLOCK::R1(G)
      • B(i);SBLOCK::R1(G)
      • S(c);S_CUTB(i),S_CUTR(h)::QAR2(B),XR(d)
      • S(f);SBLOCK::QAB(B)
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