MESON Chess Problem Database

Problem Display
PID: 162217 (8/8/6Q1/KbNBp3/6P1/p3pP1r/pp2k3/rn1R1R2 w - - 0 1)

Shire, David J

The Problemist, 2015

8/8/6Q1/KbNBp3/6P1/p3pP1r/pp2k3/rn1R1R2

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.Bxf3#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Ba4
      • 2.Bc4#
      • 2.Qd3#
    • 1...Bc4
      • 2.Bxc4#
    • 1...Ba6
      • 2.Qxa6#
    • 1...Bc6
      • 2.Bc4#
      • 2.Qd3#
    • 1...Bd7
      • 2.Bc4#
      • 2.Qd3#
    • 1...Be8
      • 2.Bc4#
      • 2.Qd3#
    • 1...Sc3
      • 2.Qc2#
  • Tries
    • 1.Kxb5?
      • threat
        • 2.Bc4#
        • 2.Qd3#
      • 1...Sd2
        • 2.Qd3#
      • 1...e4
        • 2.Bc4#
      • 1...Sc3+!
    • 1.Sb3?
      • threat
        • 2.Rde1#
      • 1...Sc3
        • 2.Qc2#
      • 1...e4
        • 2.Sd4#
      • 1...Sd2!
    • 1.Sd3?
      • threat
        • 2.Rfe1#
      • 1...Bxd3
        • 2.Qxd3#
      • 1...e4
        • 2.Sf4#
      • 1...Rh1!
  • Keys
    • 1.Se4!
      • 1...Rxf3
        • 2.Rfe1#
      • 1...Sd2
        • 2.Sc3#
      • 1...Rh1
        • 2.Sg3#
      • 1...Rh2
        • 2.Sg3#
      • 1...Rg3
        • 2.Sxg3#
      • 1...Rh4
        • 2.Sg3#
      • 1...Rh5
        • 2.Sg3#
      • 1...Rh6
        • 2.Sg3#
      • 1...Rh7
        • 2.Sg3#
      • 1...Rh8
        • 2.Sg3#
      • 1...Bd3
        • 2.Rde1#
      • 1...Ba4
        • 2.Bc4#
      • 1...Bc4
        • 2.Bxc4#
      • 1...Ba6
        • 2.Qxa6#
      • 1...Bc6
        • 2.Bc4#
      • 1...Bd7
        • 2.Bc4#
      • 1...Be8
        • 2.Bc4#
      • 1...Sc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • R(h);OGATE,XP(C)::B(G),XR(h)
    • B(i);N_GUARD::QAB1(H),XB(i)
    • B(i);N_GUARD::B(G),XB(i)
    • B(i);OGATEB::QAB(H),XB(i)
    • S(b);N_GUARD::QAR2(H)
  • Tries
    • Try
      • K(E);P-FLIGHT,XB(i)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAB1(H)
        • P(j);::B(G)
      • Refutation
        • S(b);CHECK
    • Try
      • S(F);
      • Threat
        • R1(A)
      • Vars
        • S(b);N_GUARD::QAR2(H)
        • P(j);N_GUARD::S(F)
      • Refutation
        • S(b);
    • Try
      • S(F);
      • Threat
        • R1(B)
      • Vars
        • B(i);OGATE,XS(F)::QAB1(H),XB(i)
        • P(j);N_GUARD::S(F)
      • Refutation
        • R(h);
  • Actual
    • S(F);
    • Vars
      • R(h);SBLOCK,XP(C)::R1(B)
      • S(b);N_GUARD::S(F)
      • R(h);N_GUARD::S(F)
      • R(h);N_GUARD::S(F),XR(h)
      • B(i);SBLOCK::R1(A)
      • B(i);N_GUARD::B(G)
      • B(i);N_GUARD::B(G),XB(i)
      • B(i);OGATEB::QAB(H),XB(i)
      • S(b);N_GUARD::S(F),XS(b)
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