MESON Chess Problem Database

Problem Display
PID: 24947 (qR6/pb1Q3K/p5pp/p2N4/2k5/R2NB3/3r4/b1rB4 w - - 0 1)

Pribyl, Vaclav

1/2 Prize, Cs. Sportkorn, 1956

qR6/pb1Q3K/p5pp/p2N4/2k5/R2NB3/3r4/b1rB4

#2

8 + 11

3976 FIDE Album (1956-1958) 1961
3335 Cyclone 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Se5#
    • 1...Rb2
      • 2.Se5#
    • 1...Rxd3
      • 2.Ra4#
    • 1...Be5
      • 2.Sxe5#
    • 1...Bxd5
      • 2.Qa4#
  • Tries
    • 1.Rc3+?
      • 1...Rxc3
        • 2.Se5#
      • 1...Bxc3!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd4#
      • 1...Rxc3
        • 2.Ra4#
      • 1...Rxd3
        • 2.Qa4#
      • 1...Bxc3
        • 2.Bb3#
      • 1...Bd5
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(b);S_CUTB(a)::S(C)
    • R(c);S_CUTB(a)::S(C)
    • R(c);SBLOCK,XS(C)::R(B)
    • B(a);N_GUARD::S(C),XB(a)
    • B(j);SBLOCK,XS(E)::QAR2(F)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • R(b);XR(B)::S(C)
      • Refutation
        • B(a);XR(B)
  • Actual
    • S(E);
    • Threat
      • QAR1(F)
    • Vars
      • R(b);SBLOCK,XS(E)::R(B)
      • R(c);SBLOCK,XS(C)::QAR2(F)
      • B(a);SBLOCK,XS(E)::B(A)
      • B(j);::S(C)
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