MESON Chess Problem Database

Problem Display
PID: 23233 (6K1/pp3R2/q1pp4/3p4/R1b1PN2/4k1pN/8/3Q1n1B w - - 0 1)

Dyachuk, Vasyl Vasilovich

The Problemist, 1996

6K1/pp3R2/q1pp4/3p4/R1b1PN2/4k1pN/8/3Q1n1B

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Sg2#
      • 2.Qd4#
    • 1...Be2
      • 2.Sg2#
      • 2.Qd4#
    • 1...Bb3
      • 2.Sg2#
      • 2.Qd4#
    • 1...Bd3
      • 2.Sg2#
    • 1...Bb5
      • 2.Sg2#
      • 2.Qd4#
    • 1...Sd2
      • 2.Qg1#
    • 1...dxe4
      • 2.Sg2#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Sg2#
      • 1...Sd2
        • 2.Qg1#
      • 1...g2
        • 2.Sxg2#
      • 1...Kf2!
    • 1.Bf3?
      • threat
        • 2.Sg2#
      • 1...g2
        • 2.Sxg2#
      • 1...Sd2!
    • 1.Qc1+?
      • 1...Sd2
        • 2.Qg1#
      • 1...Kd4!
  • Keys
    • 1.exd5!
      • threat
        • 2.Re7#
      • 1...Bxd5
        • 2.Qd4#
      • 1...Sd2
        • 2.Qg1#
      • 1...Bd3
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(d);::S(F)
    • S(a);OGATE,SBLOCK::QAB(A)
    • P(e);P_PINR(G),SBLOCK,XP(E)::S(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(F)
      • Vars
        • S(a);OGATE,SBLOCK::QAB(A)
        • P(c);::S(F),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Threat
        • S(F)
      • Vars
        • P(c);::S(F),XP(c)
      • Refutation
        • S(a);
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);OGATE,P_SPINS(a),SBLOCK::QAB(A)
      • Refutation
        • K(b);P_SPINB(d),S_FLIGHT
  • Actual
    • P(E);XP(e)
    • Threat
      • R(G)
    • Vars
      • B(d);P_PINR(G),XP(E)::QAB1(A)
      • S(a);OGATE,SBLOCK::QAB(A)
      • B(d);::S(F)
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