MESON Chess Problem Database

Problem Display
PID: 35519 (3B4/3N4/2Qpk3/7K/8/8/8/6R1 w - - 0 1)

Pilchenko, Viacheslav Karlovich

3rd Prize, Smena, 1993

3B4/3N4/2Qpk3/7K/8/8/8/6R1

#2

5 + 2

3705 Album Russia (1992-1994) 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Kf7!
    • 1.Bg5?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kf7!
    • 1.Re1+?
      • 1...Kf5
        • 2.Qf3#
        • 2.Qe4#
      • 1...Kf7!
    • 1.Rg4?
      • 1...Kf5
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kf7!
    • 1.Rg6+?
      • 1...Kf5
        • 2.Rf6#
        • 2.Qf3#
      • 1...Kf7!
    • 1.Rg8?
      • 1...Kf7
        • 2.Qd5#
      • 1...Kf5!
    • 1.Qe4+?
      • 1...Kf7
        • 2.Qg6#
        • 2.Qe7#
      • 1...Kxd7!
    • 1.Qxd6+?
      • 1...Kf5
        • 2.Qe5#
      • 1...Kf7
        • 2.Qe7#
        • 2.Qg6#
      • 1...Kxd6!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Kf7
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(C)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(A);CHECK
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(A);
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(A);CHECK
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB(C)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(C);CHECK,N_PINP(a)
      • Refutation
        • K(b);S_FLIGHT,XS(D)
    • Try
      • Q(C);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • S(D);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(C)
      • K(b);N_SPINP(a),S_FLIGHT::QAB1(C)
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