MESON Chess Problem Database

Problem Display
PID: 60296 (Q7/1p6/1R2N1p1/2pP2p1/2p1k1rp/2B1P1pB/3P2P1/3K4 w - - 0 1)

Sutara, Josef

2nd Prize, British Chess Magazine, 1970

Q7/1p6/1R2N1p1/2pP2p1/2p1k1rp/2B1P1pB/3P2P1/3K4

#2

10 + 9

3751 FIDE Album (1968-1970) 1977

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sxc5#
    • 1...Kxd5
      • 2.Qxb7#
  • Tries
    • 1.Sxc5+?
      • 1...Kf5
        • 2.Rf6#
        • 2.Qc8#
        • 2.Qf8#
      • 1...Kxd5!
    • 1.Bxg4?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Bf3#
        • 2.Qxb7#
      • 1...h3!
    • 1.Qxb7?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Rf4
        • 2.Sxc5#
      • 1...Kf5!
    • 1.Qa2?
      • 1...Kd3
        • 2.Sxc5#
        • 2.Qb1#
        • 2.Qc2#
      • 1...Kf5
        • 2.Qb1#
        • 2.Qc2#
      • 1...Rf4
        • 2.Qxc4#
      • 1...Kxd5!
    • 1.Qa4?
      • 1...Kd3
        • 2.Sxc5#
        • 2.Qc2#
      • 1...Kf5
        • 2.Qc2#
      • 1...Rf4
        • 2.Qxc4#
      • 1...Kxd5!
    • 1.Qb8?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Qe5#
        • 2.Qxb7#
      • 1...Kf5
        • 2.Qe5#
      • 1...Rf4!
    • 1.Qc8?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Qxb7#
      • 1...Kf5
        • 2.Sxc5#
      • 1...Rf4!
    • 1.Qd8?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Rf4
        • 2.Sxc5#
      • 1...Kf5!
    • 1.Qg8?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Sxg5#
      • 1...Rf4
        • 2.Sxc5#
      • 1...Kf5!
    • 1.Qh8?
      • 1...Kd3
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Rf4!
  • Keys
    • 1.Qe8!
      • 1...Kd3
        • 2.Sxc5#
      • 1...Kxd5
        • 2.Sc7#
      • 1...Kf5
        • 2.Sg7#
      • 1...Rf4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(I),XP(f)
    • K(c);OGATEB,P_SPINP(i),S_FLIGHT,XP(G)::QAB(J),XP(i)
  • Tries
    • Try
      • S(I);CHECK,XP(f)
      • Refutation
        • K(c);P_SPINP(i),S_FLIGHT,XP(G)
    • Try
      • B(F);XR(d)
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
      • Refutation
        • P(e);
    • Try
      • Q(J);XP(i)
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
        • R(d);::S(I),XP(f)
      • Refutation
        • K(c);P_SPINR(d),S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • R(d);::QAR2(J),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XP(G)
    • Try
      • Q(J);P_PINP(b)
      • Vars
        • K(c);N_SPINP(b),P_SPINR(d),S_FLIGHT::QAB(J)
        • R(d);::QAR2(J),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XP(G)
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
        • K(c);P_SPINR(d),S_FLIGHT::QAR1(J)
      • Refutation
        • R(d);
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
        • K(c);OGATEB,S_FLIGHT,XP(G)::QAB(J),XP(i)
        • K(c);P_SPINR(d),S_FLIGHT::QAB(J)+S(I),XP(f)
      • Refutation
        • R(d);
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
        • R(d);::S(I),XP(f)
      • Refutation
        • K(c);P_SPINR(d),S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
        • K(c);S_FLIGHT,XP(G)::QAB(J)+S(I),XP(g)
        • R(d);::S(I),XP(f)
      • Refutation
        • K(c);P_SPINR(d),S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(c);S_FLIGHT::S(I),XP(f)
        • K(c);S_FLIGHT,XP(G)::QAR1(J)
        • K(c);P_SPINR(d),S_FLIGHT::QAR1(J)
      • Refutation
        • R(d);
  • Actual
    • Q(J);
    • Vars
      • K(c);S_FLIGHT::S(I),XP(f)
      • K(c);S_FLIGHT,XP(G)::S(I)
      • K(c);P_SPINR(d),S_FLIGHT::S(I)
      • R(d);::QAR(J)+S(I),XR(d)
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