MESON Chess Problem Database

Problem Display
PID: 57446 (4bK2/bBB1pP2/2q4n/1p1r1N1R/4k3/4PNp1/1p4P1/3Qr3 w - - 0 1)

Marysko, Milos

Chess Life, 1956

4bK2/bBB1pP2/2q4n/1p1r1N1R/4k3/4PNp1/1p4P1/3Qr3

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qd7
      • 2.Qc2#
    • 1...Qc1
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Qc2
      • 2.Bxd5#
      • 2.Qxc2#
      • 2.Qxd5#
    • 1...Qc3
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Qa6
      • 2.Bxd5#
      • 2.Qc2#
      • 2.Qxd5#
    • 1...Qb6
      • 2.Bxd5#
      • 2.Qc2#
      • 2.Qxd5#
    • 1...Qd6
      • 2.Qc2#
    • 1...Qe6
      • 2.Qc2#
    • 1...Qf6
      • 2.Bxd5#
      • 2.Qc2#
      • 2.Qxd5#
    • 1...Qg6
      • 2.Bxd5#
      • 2.Qc2#
      • 2.Qxd5#
    • 1...Qxc7
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Rxe3
      • 2.Sxg3#
    • 1...Rc5
      • 2.Qd4#
    • 1...Bxe3
      • 2.Sxg3#
  • Keys
    • 1.Qb3!
      • threat
        • 2.Sxg3#
      • 1...Qxc7
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Rxf5
        • 2.Sd2#
      • 1...Sxf5
        • 2.Sg5#
      • 1...Qc3
        • 2.Qxd5#
      • 1...Qd6
        • 2.Qc2#
      • 1...Qg6
        • 2.Sd2#
        • 2.Bxd5#
        • 2.Qc2#
        • 2.Qxd5#
      • 1...Rd3
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(g);N_GUARD,P_SPINR(f)::QAB(A)
    • R(a);SBLOCK,XP(C)::S(E),XP(c)
    • R(f);N_GUARD,P_SPINQ(g),S_CUTB(i)::QAR1(A)
    • B(i);SBLOCK,XP(C)::S(E),XP(c)
  • Actual
    • Q(A);
    • Threat
      • S(E),XP(c)
    • Vars
      • R(f);N_GUARD,P_PINP(I),P_SPINQ(g),XS(E)::S(D)
      • S(h);SBLOCK,XS(E)::S(D)
      • Q(g);N_GUARD,P_SPINR(f)::QAB1(A),XR(f)
      • Q(g);N_GUARD,P_SPINR(f)::QAB(A)
      • R(f);OGATE,P_SPINQ(g),SBLOCK::QAR2(A)
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