MESON Chess Problem Database

Problem Display
PID: 42460 (8/8/N3pP2/1K6/4kpQ1/1BP1b3/7R/1N6 w - - 0 1)

Chepizhni, Viktor Ivanovich

Gordian, Yury Markovic

Melnichenko, Viktor Oleksandrovich

Shedey, Sergey Oleksandrovich

2nd Prize, British Chess Magazine, 1969

8/8/N3pP2/1K6/4kpQ1/1BP1b3/7R/1N6

#2

8 + 4

3751 FIDE Album (1968-1970) 1977
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Bc2#
      • 2.Qg6#
    • 1...Ke5
      • 2.Qxe6#
  • Tries
    • 1.Sc5+?
      • 1...Ke5
        • 2.Qxe6#
      • 1...Bxc5!
    • 1.Rh3?
      • 1...Kd3
        • 2.Sc5#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Bc1
        • 2.Qxe6#
      • 1...Bg1
        • 2.Qxe6#
      • 1...Bd2
        • 2.Qxe6#
      • 1...Bf2
        • 2.Qxe6#
      • 1...Bc5
        • 2.Qxe6#
      • 1...Bb6
        • 2.Qxe6#
      • 1...Ba7
        • 2.Qxe6#
      • 1...e5
        • 2.Qg6#
      • 1...Bd4!
    • 1.Qxe6+?
      • 1...Kd3
        • 2.Sb4#
        • 2.Bc2#
        • 2.Bc4#
        • 2.Qc4#
        • 2.Qf5#
      • 1...Kf3!
    • 1.Qg6+?
      • 1...Kf3
        • 2.Bd1#
        • 2.Qg2#
      • 1...Ke5!
  • Keys
    • 1.Re2!
      • 1...Kd3
        • 2.Bc2#
      • 1...Ke5
        • 2.Qxe6#
      • 1...e5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(c),P-FLIGHT::QAR1(E),XP(d)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR1(E),XP(d)
      • Refutation
        • B(a);XS(G)
    • Try
      • R(B);
      • Vars
        • K(b);N_SPINP(c),P_SPINB(a),S_FLIGHT::S(G)
        • K(b);N_SPINP(c),P-FLIGHT::QAR1(E),XP(d)
        • B(a);::QAR2(E),XP(d)
        • P(d);SBLOCK::QAB(E)
      • Refutation
        • B(a);
    • Try
      • Q(E);CHECK,N_PINP(c),XP(d)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,N_PINP(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(B);P_PINB(a)
    • Vars
      • K(b);N_SPINB(a),N_SPINP(c),S_FLIGHT::B(C)
      • K(b);N_SPINP(c),P-FLIGHT::QAR1(E),XP(d)
      • P(d);SBLOCK::S(G)
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