MESON Chess Problem Database

Problem Display
PID: 166994 (1qn5/B4R1K/rp1RN3/1ppPk3/1P2p3/1BP3p1/8/2b4Q w - - 0 1)

Guida, Marco

1st Prize, Musante-100 MT, 2017

1qn5/B4R1K/rp1RN3/1ppPk3/1P2p3/1BP3p1/8/2b4Q

#2

10 + 10

4901 Best Problems 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Bxb8#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Re6#
      • 1...Kxd6
        • 2.Bxb8#
      • 1...Qxd6
        • 2.Rf5#
      • 1...Sxd6
        • 2.Sc6#
      • 1...c4!
    • 1.Sxc5?
      • threat
        • 2.Re6#
      • 1...Kxd6
        • 2.Bxb8#
      • 1...Qxd6
        • 2.Qxe4#
      • 1...Sxd6
        • 2.Sd7#
      • 1...bxc5!
    • 1.Qxe4+?
      • 1...Kxd6
        • 2.Bxb8#
      • 1...Kxe4!
    • 1.Qxc1?
      • threat
        • 2.Qf4#
      • 1...Kxd6
        • 2.Bxb8#
        • 2.Qf4#
      • 1...e3!
    • 1.Qh5+?
      • 1...Kxd6
        • 2.Bxb8#
      • 1...Bg5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Re6#
      • 1...Kxd6
        • 2.Bxb8#
      • 1...Qxd6
        • 2.Qh5#
      • 1...Sxd6
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(f);OGATEB,S_FLIGHT,XR(F)::B(H),XQ(i)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XR(F)::B(H),XQ(i)
        • Q(i);SBLOCK,XR(F)::R1(I)
        • S(j);SBLOCK,XR(F)::S(G)
      • Refutation
        • P(e);
    • Try
      • S(G);XP(e)
      • Threat
        • R1(F)
      • Vars
        • K(f);OGATEB,S_FLIGHT,XR(F)::B(H),XQ(i)
        • Q(i);SBLOCK,XR(F)::QAR1(A),XP(c)
        • S(j);SBLOCK,XR(F)::S(G)
      • Refutation
        • P(h);XS(G)
    • Try
      • Q(A);CHECK,XP(c)
      • Vars
        • K(f);S_FLIGHT,XR(F)::B(H),XQ(i)
      • Refutation
        • K(f);P-FLIGHT,XQ(A)
    • Try
      • Q(A);XB(a)
      • Threat
        • QAB1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(f);S_FLIGHT,XR(F)::B(H),XQ(i)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • S(G);
    • Threat
      • R1(F)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XR(F)::B(H),XQ(i)
      • Q(i);SBLOCK,XR(F)::QAR(A)
      • S(j);SBLOCK,XR(F)::S(G)
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