MESON Chess Problem Database

Problem Display
PID: 108641 (5Q2/1nN5/Bp1pR3/NrPpp3/3k2p1/PpbP2r1/1P1P1P1B/1K1R4 w - - 0 1)

Kiss, Janos

Banska Bystrica (BABY), 1960

5Q2/1nN5/Bp1pR3/NrPpp3/3k2p1/PpbP2r1/1P1P1P1B/1K1R4

#2

14 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Sxb3#
    • 1...Sxc5
      • 2.dxc3#
    • 1...bxc5
      • 2.dxc3#
    • 1...dxc5
      • 2.dxc3#
  • Tries
    • 1.Sxb5+?
      • 1...Kxc5
        • 2.Qc8#
      • 1...Kxd3!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Rxd5#
      • 1...Kxd3
        • 2.dxc3#
      • 1...Kxc5
        • 2.Se6#
        • 2.Rxd5#
      • 1...Kxe5
        • 2.Sc6#
      • 1...Rxd3
        • 2.Se6#
      • 1...Rxc5
        • 2.Qf4#
      • 1...dxe5
        • 2.dxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD,XP(J)::S(I),XP(a)
    • S(k);SBLOCK,XP(J)::P(D),XB(b)
    • P(i);SBLOCK,XP(J)::P(D),XB(b)
    • P(j);XP(J)::P(D),XB(b)
  • Tries
    • Try
      • S(M);CHECK,XR(f)
      • Vars
        • K(d);P_SPINP(j),S_FLIGHT,XP(J)::QAR(N)
      • Refutation
        • K(d);P-FLIGHT,XP(H)
  • Actual
    • R(L);XP(h)
    • Threat
      • R1(L),XP(g)
    • Vars
      • K(d);P-FLIGHT,P_SPINR(f),XP(H)::R(B)+P(D),XB(b)
      • K(d);P_SPINR(c),S_FLIGHT,XR(L)::S(I)
      • R(c);SBLOCK,XP(H)::S(M)
      • R(f);SBLOCK,XP(J)::QAR2(N)
      • P(j);SBLOCK,XR(L)::P(D),XB(b)
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