MESON Chess Problem Database

Problem Display
PID: 72334 (4K3/3Np3/b2bB3/8/1n2kB2/r7/5Q2/2N5 w - - 0 1)

Rice, John Michael

Chess, 1953

4K3/3Np3/b2bB3/8/1n2kB2/r7/5Q2/2N5

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qe3#
    • 1...Ra2
      • 2.Qe3#
    • 1...Re3
      • 2.Qxe3#
    • 1...Ra4
      • 2.Qe3#
    • 1...Ra5
      • 2.Qe3#
    • 1...Bd3
      • 2.Qe3#
    • 1...Bc5
      • 2.Sxc5#
    • 1...Be5
      • 2.Sc5#
    • 1...Bc7
      • 2.Sc5#
    • 1...Bb8
      • 2.Sc5#
    • 1...Sd3
      • 2.Qe3#
  • Keys
    • 1.Be5!
      • threat
        • 2.Qf4#
      • 1...Bxe5
        • 2.Sc5#
      • 1...Rf3
        • 2.Qd4#
      • 1...Sd3
        • 2.Qe2#
      • 1...Sd5
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::QAR1(B)
    • R(a);N_GUARD::QAR1(B),XR(a)
    • B(d);S_CUTR(a)::QAR1(B)
    • B(e);N_GUARD::S(E),XB(e)
    • B(e);N_GUARD::S(E)
    • S(b);S_CUTR(a)::QAR1(B)
  • Actual
    • B(C);
    • Threat
      • QAR1(B)
    • Vars
      • B(e);N_GUARD,SBLOCK,XB(C)::S(E)
      • R(a);SBLOCK::QAR1(B)
      • S(b);S_CUTB(d),S_CUTR(a)::QAR2(B)
      • S(b);SBLOCK::B(D)
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