MESON Chess Problem Database

Problem Display
PID: 96669 (8/4B3/4p3/2n1k1N1/3rp1R1/2PP2Pr/2K1R3/7Q w - - 0 1)

Riczu, Lajos

Problemas, 1967

8/4B3/4p3/2n1k1N1/3rp1R1/2PP2Pr/2K1R3/7Q

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Kf5
        • 2.Rg5#
      • 1...Kd5!
    • 1.Sxh3?
      • threat
        • 2.Rg5#
      • 1...Kf5
        • 2.Rg5#
      • 1...Kd5!
    • 1.Sf7+?
      • 1...Kf5
        • 2.Rg5#
      • 1...Kd5!
    • 1.Sh7?
      • threat
        • 2.Rg5#
      • 1...Kf5
        • 2.Rg5#
      • 1...Rxg3
        • 2.Qh5#
      • 1...Rh5
        • 2.Qxh5#
      • 1...Kd5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Rg5#
      • 1...Kd5
        • 2.Sf6#
      • 1...Kf5
        • 2.Rg5#
      • 1...Rxg3
        • 2.Qh5#
      • 1...Rh5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);N_SPINP(c),P-FLIGHT::R1(G)
      • Refutation
        • K(e);N_SPINP(c),P-FLIGHT
    • Try
      • S(H);XR(a)
      • Threat
        • R(G)
      • Vars
        • K(e);N_SPINP(c),P-FLIGHT::R1(G)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(e);N_SPINP(c),P-FLIGHT::R1(G)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • S(H);
      • Threat
        • R(G)
      • Vars
        • K(e);N_SPINP(c),P-FLIGHT::R1(G)
        • R(a);OGATE,XP(F)::QAR(A)
        • R(a);OGATE::QAR(A),XR(a)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(H);XP(c)
    • Threat
      • R(G)
    • Vars
      • K(e);P-FLIGHT::QAB(A)+S(H),DCHECK
      • K(e);P-FLIGHT::R1(G)
      • R(a);OGATE,XP(F)::QAR(A)
      • R(a);OGATE::QAR(A),XR(a)
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