MESON Chess Problem Database

Problem Display
PID: 60903 (3r4/1QBp4/8/2kB4/8/2pr1R2/2N5/1Kn5 w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd Prize, Chervoni Girnik, 1998

3r4/1QBp4/8/2kB4/8/2pr1R2/2N5/1Kn5

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Rxc3#
    • 1...Rd2
      • 2.Rxc3#
    • 1...Rxd5
      • 2.Rxc3#
    • 1...d6
      • 2.Qc6#
  • Tries
    • 1.Rxd3?
      • threat
        • 2.Rxc3#
        • 2.Qb4#
        • 2.Qb6#
      • 1...Rb8
        • 2.Rxc3#
      • 1...Sa2
        • 2.Qb6#
      • 1...Se2
        • 2.Qb4#
        • 2.Qb6#
      • 1...Sxd3!
    • 1.Rf4?
      • threat
        • 2.Rc4#
      • 1...Rxd5
        • 2.Qb6#
      • 1...Rd4!
    • 1.Rf5?
      • threat
        • 2.Qb4#
        • 2.Qb6#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Rd4
        • 2.Qb6#
      • 1...Sa2
        • 2.Qb6#
      • 1...Rb8!
    • 1.Qa7+?
      • 1...Kb5
        • 2.Qa5#
      • 1...Kxd5!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Bd6#
      • 1...Rxd5
        • 2.Qb4#
      • 1...d6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(c);OGATE::R(C),XP(b)
    • R(c);OGATE,XB(D)::R(C),XP(b)
    • P(e);N_GUARD::QAR1(E)
  • Tries
    • Try
      • R(C);XR(c)
      • Threat
        • DUALS(3)
      • Vars
        • R(f);P_PINQ(E)::R(C),XP(b)
        • S(a);::QAB1(E)
      • Refutation
        • S(a);XR(C)
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • R(c);SBLOCK,XB(D)::QAB1(E)
      • Refutation
        • R(c);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATE,P_SPINR(c),XB(D)::QAR1(E),XR(c)
        • R(c);::QAB1(E)
        • S(a);::QAB1(E)
      • Refutation
        • R(f);P_PINQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(E)
      • Refutation
        • K(d);P-FLIGHT,XB(D)
  • Actual
    • R(C);
    • Threat
      • B(F)
    • Vars
      • R(c);SBLOCK,XB(D)::QAB1(E)
      • P(e);N_GUARD::QAR1(E)
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