MESON Chess Problem Database

Problem Display
PID: 241115 (n3N2B/1K6/3NpQP1/3kPp2/1pR5/1r6/8/4R1b1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Sachsische Zeitung, 2008

n3N2B/1K6/3NpQP1/3kPp2/1pR5/1r6/8/4R1b1

#2

9 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
  • Tries
    • 1.Rd1+?
      • 1...Bd4
        • 2.Rdxd4#
      • 1...Rd3!
    • 1.Qg5?
      • threat
        • 2.Sf6#
      • 1...Be3
        • 2.Qg2#
      • 1...Re3!
    • 1.Qd8?
      • threat
        • 2.Sf6#
      • 1...Re3
        • 2.Qa5#
      • 1...Be3!
    • 1.Qxf5?
      • threat
        • 2.Sf6#
        • 2.Qe4#
      • 1...Re3
        • 2.Sf6#
      • 1...exf5!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Sf6#
      • 1...Re3
        • 2.Qd4#
      • 1...Be3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(g);N_GUARD::S(H)
    • S(g);N_GUARD::S(H),XS(g)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(A),XB(a)
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • Q(E);
      • Threat
        • S(H)
      • Vars
        • B(a);S_CUTR(b)::QAB(E)
      • Refutation
        • R(b);
    • Try
      • Q(E);
      • Threat
        • S(H)
      • Vars
        • R(b);S_CUTB(a)::QAR(E)
      • Refutation
        • B(a);
    • Try
      • Q(E);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::S(H)
      • Refutation
        • P(f);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • S(H)
    • Vars
      • R(b);S_CUTB(a)::QAR1(E)
      • B(a);S_CUTR(b)::QAB(E)
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