MESON Chess Problem Database

Problem Display
PID: 193961 (KbN5/Qp6/8/nB1k4/8/r2PRn2/4N3/6B1 w - - 0 1)

Wilson, Francis Vaux

Pittsburgh Gazette-Times, 1916

KbN5/Qp6/8/nB1k4/8/r2PRn2/4N3/6B1

#2

8 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sc3#
    • 1...Ra2
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Ra4
      • 2.Sc3#
    • 1...Bf4
      • 2.Sxf4#
    • 1...Se1
      • 2.Qd4#
    • 1...Sxg1
      • 2.Qd4#
    • 1...Sd2
      • 2.Qd4#
    • 1...Sh2
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sh4
      • 2.Qd4#
    • 1...Se5
      • 2.Sf4#
    • 1...Sg5
      • 2.Qd4#
    • 1...Sb3
      • 2.Sc3#
    • 1...Sc4
      • 2.dxc4#
    • 1...Sc6
      • 2.Bc4#
  • Tries
    • 1.Re7?
      • threat
        • 2.Qc5#
      • 1...Bxa7
        • 2.Sf4#
      • 1...Sxg1
        • 2.Qd4#
      • 1...Rc3
        • 2.Sxc3#
      • 1...Bd6
        • 2.Sb6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sb3
        • 2.Sc3#
      • 1...Sc4
        • 2.dxc4#
      • 1...Sc6
        • 2.Bc4#
      • 1...b6!
  • Keys
    • 1.Re8!
      • threat
        • 2.Qc5#
      • 1...Bxa7
        • 2.Sf4#
      • 1...Sxg1
        • 2.Qd4#
      • 1...Rc3
        • 2.Sxc3#
      • 1...Bd6
        • 2.Sb6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sb3
        • 2.Sc3#
      • 1...Sc4
        • 2.dxc4#
      • 1...Sc6
        • 2.Bc4#
      • 1...b6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(a);N_GUARD::S(B)
    • R(a);N_GUARD::S(B),XR(a)
    • B(f);N_GUARD::S(B),XB(f)
    • S(b);N_GUARD::QAR1(F)
    • S(b);N_GUARD,XB(A)::QAR1(F)
    • S(b);N_GUARD::QAR1(F),XS(b)
    • S(b);S_CUTB(f)::S(B)
    • S(c);P_PINQ(F),S_CUTR(a)::S(B)
    • S(c);OGATE,P_PINQ(F)::P(C),XS(c)
    • S(c);N_GUARD,P_PINQ(F),SBLOCK::B(E)
  • Tries
    • Try
      • R(D);
      • Threat
        • QAR1(F)
      • Vars
        • B(f);N_GUARD,XQ(F)::S(B)
        • S(b);N_GUARD,XB(A)::QAR1(F)
        • R(a);N_GUARD::S(B),XR(a)
        • B(f);SBLOCK::S(H)
        • S(b);N_GUARD::QAR1(F),XS(b)
        • S(c);P_PINQ(F),S_CUTR(a)::S(B)
        • S(c);OGATE,P_PINQ(F)::P(C),XS(c)
        • S(c);N_GUARD,P_PINQ(F),SBLOCK::B(E)
      • Refutation
        • P(e);
  • Actual
    • R(D);
    • Threat
      • QAR1(F)
    • Vars
      • B(f);N_GUARD,XQ(F)::S(B)
      • S(b);N_GUARD,XB(A)::QAR1(F)
      • R(a);N_GUARD::S(B),XR(a)
      • B(f);SBLOCK::S(H)
      • S(b);N_GUARD::QAR1(F),XS(b)
      • S(c);P_PINQ(F),S_CUTR(a)::S(B)
      • S(c);OGATE,P_PINQ(F)::P(C),XS(c)
      • S(c);N_GUARD,P_PINQ(F),SBLOCK::B(E)
      • P(e);OGATE::QAB(F)
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Developed and maintained by Brian Stephenson.
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