MESON Chess Problem Database

Problem Display
PID: 55385 (4Q3/bBB1n1Nq/1r1Prp1p/1p2kbp1/3R4/4K3/5P2/8 w - - 0 1)

Siklosi, Pal

4th Prize, Dunaujvarosi Hirlap, 1962

4Q3/bBB1n1Nq/1r1Prp1p/1p2kbp1/3R4/4K3/5P2/8

#2

8 + 11

3747 FIDE Album (1962-1964) 1968

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Rd5#
    • 1...Sd5+
      • 2.Rxd5#
    • 1...Sc6
      • 2.d7#
    • 1...Sg6
      • 2.Rd5#
    • 1...Sc8
      • 2.Rd5#
    • 1...Sg8
      • 2.Rd5#
  • Tries
    • 1.Qxb5+?
      • 1...Sd5+
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rxb5!
    • 1.dxe7+?
      • 1...Red6
        • 2.Rd5#
      • 1...Rbd6!
    • 1.d7+?
      • 1...Red6
        • 2.Rd5#
      • 1...Rbd6!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qh2#
      • 1...Sd5+
        • 2.Rxd5#
      • 1...Bh3
        • 2.f4#
      • 1...Sg6
        • 2.Rd5#
      • 1...g4
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(f);P_SPINR(f),P_SPINS(j),XP(D)::R1(C)
    • S(j);CHECK,N_GUARD,P_SPINR(f)::R1(C),XS(j)
    • S(j);P_SPINR(f),S_CUTR(e)::B(F)+P(D)
    • S(j);N_GUARD,P_SPINR(f)::R1(C)
  • Tries
    • Try
      • Q(H);CHECK,XP(a)
      • Refutation
        • R(e);P_PINR(C),XQ(H)
    • Try
      • P(D);CHECK,XS(j)
      • Vars
        • R(f);P_SPINR(f)::R1(C)
      • Refutation
        • R(e);P_PINR(C),P_SPINR(e)
    • Try
      • P(D);CHECK
      • Vars
        • R(f);P_SPINR(f),P_SPINS(j)::R1(C)
      • Refutation
        • R(e);P_PINR(C),P_SPINR(e)
  • Actual
    • Q(H);
    • Threat
      • QAB(H)
    • Vars
      • S(j);CHECK,N_GUARD::R1(C),XS(j)
      • B(c);P_SPINP(d)::P(A)
      • S(j);N_GUARD::R1(C)
      • P(d);P_SPINB(c)::R1(C)
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