MESON Chess Problem Database

Problem Display
PID: 142226 (b3R1BK/3R4/1p3p2/1Q2nP1N/3nk1p1/r3Np2/3Bpr2/8 w - - 0 1)

Vinagre, Jose C

The Problemist Supplement, 2011

b3R1BK/3R4/1p3p2/1Q2nP1N/3nk1p1/r3Np2/3Bpr2/8

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Bxd5#
    • 1...Sb3
      • 2.Qd3#
    • 1...Sc6
      • 2.Qd5#
  • Tries
    • 1.Qd5+?
      • 1...Kd3
        • 2.Qxd4#
      • 1...Bxd5!
    • 1.Qxe5+?
      • 1...Kd3
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...fxe5!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd6#
      • 1...Kd3
        • 2.Qb1#
      • 1...Kxf5
        • 2.Bh7#
      • 1...Sxb5
        • 2.Sg3#
      • 1...Sxf5
        • 2.Sxf6#
      • 1...Sc2
        • 2.Sg3#
      • 1...Sb3
        • 2.Sg3#
      • 1...Sc6
        • 2.Sg3#
      • 1...Se6
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(k);N_GUARD::B(H),XB(k)
    • S(e);S_CUTR(c)::QAB1(C)
    • S(e);S_CUTB(k)::QAB1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);N_SPINS(h),P_SPINS(e),S_FLIGHT::QAR1(C),XS(e)
      • Refutation
        • B(k);XQ(C)
    • Try
      • Q(C);CHECK,XS(h)
      • Refutation
        • P(j);P_SPINP(j),XQ(C)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(f);N_SPINS(h),P_SPINS(e),S_FLIGHT::QAB(C)
      • K(f);OGATEB,S_FLIGHT,XP(D)::B(H)
      • S(e);XQ(C)::S(E)
      • S(e);SBLOCK,XP(D)::S(E),XP(j)
      • S(e);::S(E)
      • S(e);N_SPINS(h)::S(E)
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