MESON Chess Problem Database

Problem Display
PID: 108663 (2R5/2N5/p3p3/Pp2P3/pk6/3Qp3/P3P3/K2BN3 w - - 0 1)

Shedey, Sergey Oleksandrovich

Shakhmaty i Shashki, 1981

2R5/2N5/p3p3/Pp2P3/pk6/3Qp3/P3P3/K2BN3

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Sd5#
      • 2.Sxa6#
      • 2.Qc3#
  • Tries
    • 1.Sc2+?
      • 1...Kc5
        • 2.Sxb5#
        • 2.Sd5#
        • 2.Sxa6#
        • 2.Sxe6#
        • 2.Sa8#
        • 2.Se8#
        • 2.Qc3#
      • 1...Kxa5!
    • 1.Sd5+?
      • 1...exd5
        • 2.Qc3#
      • 1...Kxa5!
    • 1.Ra8?
      • 1...Kxa5
        • 2.Qxb5#
      • 1...Kc5
        • 2.Qc3#
      • 1...a3!
    • 1.Qd2+?
      • 1...Ka3
        • 2.Sc2#
        • 2.Qc3#
        • 2.Qb2#
      • 1...Kc4
        • 2.Sd5#
        • 2.Sxa6#
        • 2.Sxe6#
        • 2.Sa8#
        • 2.Se8#
      • 1...Kc5
        • 2.Sd5#
        • 2.Sxa6#
        • 2.Sxe6#
        • 2.Sa8#
        • 2.Se8#
        • 2.Qc3#
      • 1...exd2!
    • 1.Qd4+?
      • 1...Ka3
        • 2.Sc2#
        • 2.Qb2#
        • 2.Qc3#
      • 1...Kxa5!
    • 1.Qd6+?
      • 1...Kc3
        • 2.Sxb5#
        • 2.Sxa6#
        • 2.Sxe6#
        • 2.Sa8#
        • 2.Se8#
      • 1...Kc4
        • 2.Sxa6#
        • 2.Sxe6#
        • 2.Sa8#
        • 2.Se8#
      • 1...Kxa5!
    • 1.a3+?
      • 1...Kc5
        • 2.Sxb5#
        • 2.Sd5#
        • 2.Sxa6#
        • 2.Sxe6#
        • 2.Sa8#
        • 2.Se8#
        • 2.Qc3#
      • 1...Kxa5!
  • Keys
    • 1.Qd8!
      • 1...Ka3
        • 2.Sc2#
      • 1...Kc3
        • 2.Sxa6#
      • 1...Kc4
        • 2.Sxa6#
      • 1...Kxa5
        • 2.Sd5#
      • 1...Kc5
        • 2.Sxa6#
      • 1...a3
        • 2.Sxa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • S(I);CHECK
      • Vars
        • P(f);XS(I)::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • R(J);
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT,XP(G)::QAR1(F),XP(d)
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • P(b);
    • Try
      • Q(F);CHECK
      • Refutation
        • P(a);XQ(F)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • P(D);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(G)
  • Actual
    • Q(F);
    • Vars
      • K(c);S_FLIGHT::S(C)
      • K(c);S_FLIGHT::R(J)+S(I),XP(e)
      • K(c);P-FLIGHT::R(J)+S(I),XP(e)
      • K(c);S_FLIGHT,XP(G)::QAB(F)+S(I)
      • K(c);S_FLIGHT::R(J)+S(I),DCHECK,XP(e)
      • P(b);SBLOCK::S(I),XP(e)
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