MESON Chess Problem Database

Problem Display
PID: 250827 (5n1B/8/pR3N2/K1kp4/1p1rp3/1Bp5/8/5Q2 w - - 0 1)

Kirillov, Valery Afanasievich

Maslov, N

Uralski Problemist, 2010

5n1B/8/pR3N2/K1kp4/1p1rp3/1Bp5/8/5Q2

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Sd7#
    • 1...Sg6
      • 2.Sd7#
    • 1...Sd7
      • 2.Sxd7#
    • 1...Sh7
      • 2.Sd7#
  • Tries
    • 1.Bxd5?
      • threat
        • 2.Rc6#
      • 1...Rxd5
        • 2.Sxe4#
      • 1...Rd1
        • 2.Qc4#
      • 1...Rd2
        • 2.Qc4#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Rd3!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qc8#
      • 1...Rd1
        • 2.Sxe4#
      • 1...Rd2
        • 2.Sxe4#
      • 1...Rd3
        • 2.Sxe4#
      • 1...Rc4
        • 2.Qxd5#
      • 1...Se6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(h);N_GUARD::S(E)
    • S(h);N_GUARD::S(E),XS(h)
  • Tries
    • Try
      • B(B);XP(f)
      • Threat
        • R1(D)
      • Vars
        • R(c);N_GUARD,SBLOCK,XB(B)::S(E),XP(d)
        • R(c);N_GUARD::QAR1(A)
        • R(c);N_GUARD::QAR1(A),XR(c)
      • Refutation
        • R(c);
  • Actual
    • Q(A);P_PINP(f)
    • Threat
      • QAR(A)
    • Vars
      • R(c);N_GUARD::S(E),XP(d)
      • R(c);N_GUARD::QAR1(A),XP(f)
      • S(h);N_GUARD::S(E)
      • S(h);N_GUARD::S(E),XS(h)
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