MESON Chess Problem Database

Problem Display
PID: 18628 (1b6/6R1/5Ppp/1R2qk1p/4N2P/1B2P1P1/p6N/B1Q3K1 w - - 0 1)

Bedoni, Romeo

Monreal, Pierre

2nd HM., Schlesinger Ty., 1956-1957

1b6/6R1/5Ppp/1R2qk1p/4N2P/1B2P1P1/p6N/B1Q3K1

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Bc2#
    • 1...Ba7
      • 2.Rxe5#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Qf1#
      • 1...Kxf6
        • 2.Rf7#
      • 1...Qxb5
        • 2.Be6#
        • 2.e4#
      • 1...Qc5
        • 2.Bc2#
        • 2.Be6#
        • 2.Qc2#
      • 1...Qd5
        • 2.Bc2#
        • 2.Qc2#
        • 2.Qc8#
        • 2.e4#
      • 1...hxg5!
    • 1.Sd6+?
      • 1...Kxf6
        • 2.Bxe5#
        • 2.Rf7#
      • 1...Bxd6!
    • 1.Be6+?
      • 1...Kxe6
        • 2.Qc8#
      • 1...Kxe4!
    • 1.g4+?
      • 1...Kxe4
        • 2.Bc2#
      • 1...hxg4!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Qf1#
      • 1...Kxf6
        • 2.Rf7#
      • 1...Qxb5
        • 2.e4#
      • 1...Qc5
        • 2.Qc2#
      • 1...Qd5
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • K(c);N_SPINQ(b),OGATEB,S_FLIGHT,XS(H)::B(E)
    • B(g);N_GUARD,P_PINP(F)::R1(J),XQ(b)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAR(B)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(K)::R1(L)
      • Refutation
        • P(f);XS(H)
    • Try
      • S(H);CHECK
      • Refutation
        • B(g);XS(H)
    • Try
      • B(E);CHECK
      • Vars
        • K(c);N_SPINQ(b),S_FLIGHT,XB(E)::QAB(B)
      • Refutation
        • K(c);N_SPINQ(b),S_FLIGHT,XS(H)
    • Try
      • P(G);CHECK
      • Vars
        • K(c);N_SPINQ(b),S_FLIGHT,XS(H)::B(E)
      • Refutation
        • P(d);XP(G)
  • Actual
    • S(H);
    • Threat
      • QAR(B)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(K)::R1(L)
      • Q(b);N_SPINQ(b),XR(J)::P(F)
      • Q(b);P_PINP(F)::QAB(B)
      • Q(b);::QAB(B)
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