MESON Chess Problem Database

Problem Display
PID: 77966 (8/4p3/4B1N1/8/4Np2/4pr1r/3pQpkp/3K1nbn w - - 0 1)

Rice, John Michael

The Tablet, 1955

(First published on Sat Jul 9 1955)

8/4p3/4B1N1/8/4Np2/4pr1r/3pQpkp/3K1nbn

#2

5 + 12

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rfg3
      • 2.Sxf4#
    • 1...Rhg3
      • 2.Sh4#
    • 1...Rh4
      • 2.Sxh4#
  • Tries
    • 1.Bxh3+?
      • 1...Rxh3
        • 2.Sxf4#
      • 1...Kxh3!
    • 1.Qxf3+?
      • 1...Rxf3
        • 2.Sh4#
      • 1...Kxf3!
  • Keys
    • 1.Sg5!
      • 1...Kg3
        • 2.Qxf3#
      • 1...Rh4
        • 2.Qxf3#
      • 1...Rfg3
        • 2.Sxf4#
      • 1...Rhg3
        • 2.Sh4#
      • 1...Rh5
        • 2.Qxf3#
      • 1...Rh6
        • 2.Qxf3#
      • 1...Rh7
        • 2.Qxf3#
      • 1...Rh8
        • 2.Qxf3#
      • 1...Sfg3
        • 2.Bxh3#
      • 1...Shg3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(i);N_GUARD::S(E),XP(k)
    • R(j);N_GUARD::S(E)
    • R(j);N_GUARD::S(E),XR(j)
  • Tries
    • Try
      • B(D);CHECK,XR(j)
      • Vars
        • R(i);XB(D)::S(E),XP(k)
      • Refutation
        • K(f);N_SPINP(e),S_FLIGHT,XB(D)
    • Try
      • Q(B);CHECK,N_PINP(e),XR(i)
      • Vars
        • R(j);XQ(B)::S(E)
      • Refutation
        • K(f);S_FLIGHT,XQ(B)
  • Actual
    • S(C);
    • Vars
      • K(f);N_SPINP(e),P-FLIGHT::QAR1(B),XR(i)
      • R(j);N_GUARD::QAB1(B),XR(i)
      • R(i);N_GUARD,SBLOCK::S(E),XP(k)
      • R(j);N_GUARD,SBLOCK::S(E)
      • S(a);SBLOCK,S_CUTR(i)::B(D),XR(j)
      • S(c);S_CUTR(j)::QAB1(B),XR(i)
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