MESON Chess Problem Database

Problem Display
PID: 146174 (1rB1N3/1p2N3/8/Pk3pR1/1P6/K1p1Br1b/4R3/5Q2 w - - 0 1)

Puig y Puig, Esteban

2nd HM., Bonus Socius Ty., 1939

1rB1N3/1p2N3/8/Pk3pR1/1P6/K1p1Br1b/4R3/5Q2

#2

10 + 7

448 SEPA 1940

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Sc7#
    • 1...Rg3
      • 2.Rg2#
    • 1...Bg4
      • 2.Rf2#
    • 1...b6
      • 2.Sd6#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Sc7#
      • 1...Ka6
        • 2.Sc7#
      • 1...Rxc8!
    • 1.Bd7+?
      • 1...Ka6
        • 2.Sc7#
      • 1...Kc4!
  • Keys
    • 1.Bxf5!
      • threat
        • 2.Bd3#
      • 1...Kc4
        • 2.Sd6#
      • 1...Ka6
        • 2.Sc7#
      • 1...Rxf5
        • 2.Reg2#
      • 1...Bxf5
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(d);N_SPINP(e),P_SPINP(f),S_FLIGHT::S(J)
    • R(b);N_GUARD::QAB(A)+R(B)
    • B(c);N_GUARD::QAB(A)+R(B)
    • P(f);::S(J)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • S(J)
      • Vars
        • K(d);N_SPINP(e),P_SPINP(f),S_FLIGHT::S(J)
      • Refutation
        • R(g);XB(I)
    • Try
      • B(I);CHECK
      • Vars
        • K(d);N_SPINP(e),S_FLIGHT::S(J)
      • Refutation
        • K(d);N_SPINP(e),S_FLIGHT
  • Actual
    • B(I);XP(e)
    • Threat
      • R(G)+B(I),DCHECK
    • Vars
      • K(d);S_FLIGHT::S(J)
      • R(b);N_GUARD,P_SPINR(b),XB(I)::QAB(A)+R(B)
      • B(c);N_GUARD,P_SPINB(c),XB(I)::QAB(A)+R(B)
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