MESON Chess Problem Database

Problem Display
PID: 98660 (5K2/3pN2B/1R2p3/2npk1P1/2p5/br3RP1/4p3/qbn1N1BQ w - - 0 1)

Rizzetti, Dante Hugo

Problemas, 1974

5K2/3pN2B/1R2p3/2npk1P1/2p5/br3RP1/4p3/qbn1N1BQ

#2

10 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3+
      • 2.Sxf3#
    • 1...d6
      • 2.Sc6#
  • Tries
    • 1.Sg6+?
      • 1...Ke4
        • 2.Rf4#
        • 2.Qh4#
      • 1...Bxg6!
    • 1.Re3+?
      • 1...Kd4
        • 2.Sf3#
      • 1...Be4
        • 2.Sf3#
      • 1...Se4
        • 2.Sf3#
      • 1...Rxe3!
    • 1.Rf5+?
      • 1...exf5
        • 2.Sg6#
        • 2.Qxd5#
      • 1...Bxf5!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qf4#
      • 1...Rxf3+
        • 2.Sxf3#
      • 1...Qd4
        • 2.Bxd4#
        • 2.Qxd4#
      • 1...S1d3
        • 2.Sg6#
      • 1...S5d3
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);CHECK,XR(D)::S(A),XR(f)
    • P(l);N_GUARD,SBLOCK::S(H)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • B(b);XS(H)
    • Try
      • R(D);CHECK
      • Vars
        • K(j);S_FLIGHT::S(A)
        • B(b);P_SPINB(b)::S(A)
        • S(h);P_PINS(H),P_SPINS(h)::S(A)
      • Refutation
        • R(f);XR(D)
    • Try
      • R(D);CHECK
      • Refutation
        • B(b);XR(D)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • R(f);CHECK,XR(D)::S(A),XR(f)
      • S(c);S_CUTB(b)::S(H)
      • S(h);N_GUARD,P_PINS(H),S_CUTB(b),S_CUTR(f)::R(D)
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