MESON Chess Problem Database

Problem Display
PID: 135727 (2nrR2B/6Q1/1b1pb3/1Rn2Pp1/2p1kpN1/5p1B/5P2/2NK4 w - - 0 1)

Ancin, Andrej

Magyar Sakkvilag, 1961

2nrR2B/6Q1/1b1pb3/1Rn2Pp1/2p1kpN1/5p1B/5P2/2NK4

#2

10 + 11

14649 Andrej Ancin - Chess Compositions 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qb7#
    • 1...Kxf5
      • 2.Qh7#
    • 1...Sb3
      • 2.Rxe6#
    • 1...Sa4
      • 2.Rxe6#
    • 1...Sa6
      • 2.Rxe6#
    • 1...Sb7
      • 2.Rxe6#
    • 1...d5
      • 2.Qe5#
  • Tries
    • 1.Rxe6+?
      • 1...Kd5
        • 2.Qb7#
      • 1...Kxf5
        • 2.Se3#
        • 2.Sh6#
        • 2.Qf6#
        • 2.Qg6#
        • 2.Qf7#
      • 1...Sxe6!
    • 1.Qa1?
      • threat
        • 2.Sf6#
      • 1...Kd5
        • 2.Qa8#
      • 1...Kxf5
        • 2.Qb1#
      • 1...Sd7
        • 2.Qb1#
      • 1...c3!
    • 1.Qb7+?
      • 1...Kxf5
        • 2.Qh7#
      • 1...Sxb7
        • 2.Rxe6#
      • 1...d5!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Sf6#
      • 1...Kd5
        • 2.Qxf3#
      • 1...Kxf5
        • 2.Qc2#
      • 1...Sd7
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(c);N_SPINB(i),P_SPINS(e),S_FLIGHT::QAB(H)
    • K(c);N_SPINB(i),OGATEB,P_SPINS(e),S_FLIGHT,XP(G)::QAB(H)
    • S(e);N_GUARD::R(I),XB(i)
    • P(h);N_GUARD::QAR1(H)
  • Tries
    • Try
      • R(I);CHECK,XB(i)
      • Vars
        • K(c);P_SPINS(e),S_FLIGHT::QAB(H)
      • Refutation
        • S(e);XR(I)
    • Try
      • Q(H);
      • Threat
        • S(E)
      • Vars
        • K(c);N_SPINB(i),P_SPINS(e),S_FLIGHT::QAB(H)
        • K(c);N_SPINB(i),P_SPINS(e),S_FLIGHT,XP(G)::QAB(H)
        • S(e);N_GUARD::QAB(H)
      • Refutation
        • P(b);
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);N_SPINB(i),OGATEB,P_SPINS(e),S_FLIGHT,XP(G)::QAB(H)
        • S(e);XQ(H)::R(I),XB(i)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • Q(H);
    • Threat
      • S(E)
    • Vars
      • K(c);N_SPINB(i),P_SPINS(e),S_FLIGHT::QAB(H),XP(a)
      • K(c);N_SPINB(i),P_SPINS(e),S_FLIGHT,XP(G)::QAB(H)
      • S(e);N_GUARD::QAB(H)
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