MESON Chess Problem Database

Problem Display
PID: 187271 (6N1/8/4p3/Rb2k3/1K6/8/2RB1PB1/2Q5 w - - 0 1)

Diatlov, Oleg

Skrinnik, Oleksandr Petrovich

Syzonenko, Viktor N

2nd Sp. Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1996-1997

6N1/8/4p3/Rb2k3/1K6/8/2RB1PB1/2Q5

#2

8 + 3

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Bf4+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5!
    • 1.Bh6?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf5
        • 2.Qg5#
      • 1...Kd6!
    • 1.Rc5+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kd6!
    • 1.Rc6?
      • threat
        • 2.Qc5#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf5!
    • 1.Rc7?
      • threat
        • 2.Qc5#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf5!
    • 1.Rc8?
      • threat
        • 2.Qc5#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kf5!
    • 1.Qb2+?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf5!
    • 1.Qa1+?
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf5!
    • 1.Qe1+?
      • 1...Kd4
        • 2.Qe3#
        • 2.Qe4#
      • 1...Kf5
        • 2.Qe4#
      • 1...Kd6!
  • Keys
    • 1.Qd1!
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf5
        • 2.Qh5#
      • 1...Kd6
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
    • Try
      • R(B);CHECK,N_PINB(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);N_SPINB(a),S_FLIGHT::QAR(A)+B(C),DCHECK
      • K(b);P-FLIGHT::QAR2(A)
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