MESON Chess Problem Database

Problem Display
PID: 157311 (5Q2/2P4r/4k3/4P3/b3P3/1R6/8/KB6 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Moloda Galizina, 1991

5Q2/2P4r/4k3/4P3/b3P3/1R6/8/KB6

#2

7 + 3

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd7
      • 2.c8Q#
    • 1...Rd7
      • 2.Qf6#
    • 1...Re7
      • 2.Qf5#
    • 1...Rf7
      • 2.Qd6#
    • 1...Bd7
      • 2.Qf6#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Qf6#
      • 1...Kxe5
        • 2.Qf5#
      • 1...Rf7
        • 2.Qd6#
      • 1...Rh6!
    • 1.Rb6+?
      • 1...Kxe5
        • 2.Qd6#
        • 2.Qf6#
      • 1...Kd7
        • 2.Qd8#
        • 2.c8Q#
      • 1...Bc6!
    • 1.c8Q+?
      • 1...Rd7
        • 2.Qf6#
        • 2.Qfe8#
      • 1...Bd7
        • 2.Qf6#
      • 1...Kxe5!
    • 1.c8S?
      • threat
        • 2.Qf5#
      • 1...Kxe5
        • 2.Qd6#
      • 1...Rh5
        • 2.Qe7#
      • 1...Rf7
        • 2.Qd6#
      • 1...Kd7!
    • 1.c8B+?
      • 1...Rd7
        • 2.Qf6#
        • 2.Qe8#
      • 1...Bd7
        • 2.Qf6#
      • 1...Kxe5!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Qd6#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Kd7
        • 2.c8Q#
      • 1...Rd7
        • 2.Qf6#
      • 1...Re7
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(b);S_FLIGHT::P=Q
    • R(c);SBLOCK::QAR1(G)
    • R(c);SBLOCK::QAB1(G)
    • B(a);SBLOCK::QAR1(G)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAR1(G)
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR1(G)
        • R(c);SBLOCK::QAR1(G)
      • Refutation
        • R(c);
    • Try
      • R(C);CHECK
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • P(F);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAR1(G)
      • Refutation
        • K(b);P-FLIGHT,XP(E)
    • Try
      • P(F);
      • Threat
        • QAB1(G)
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAB1(G)
        • R(c);N_GUARD::QAR1(G)
        • R(c);SBLOCK::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(F);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAR1(G)
      • Refutation
        • K(b);P-FLIGHT,XP(E)
  • Actual
    • R(C);
    • Threat
      • QAR1(G)
    • Vars
      • K(b);P-FLIGHT,XP(E)::QAB1(G)
      • K(b);S_FLIGHT::P=Q
      • R(c);SBLOCK::QAR1(G)
      • R(c);SBLOCK::QAB1(G)
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