MESON Chess Problem Database

Problem Display
PID: 225641 (R1Nbq2B/3B4/1Pbrp3/1kn1R2p/4p2Q/Pp1pn3/3N4/7K w - - 0 1)

Musante, Horacio Luis

1st Prize, Praca, 1957

R1Nbq2B/3B4/1Pbrp3/1kn1R2p/4p2Q/Pp1pn3/3N4/7K

#2

10 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb6
      • 2.Sxd6#
  • Tries
    • 1.Qxe4?
      • threat
        • 2.a4#
      • 1...Rd5
        • 2.Qb4#
      • 1...Rd4
        • 2.Qxc6#
      • 1...Sd5
        • 2.Qc4#
      • 1...Sc4!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Rxc5#
      • 1...Kc4
        • 2.Rxc5#
      • 1...Bxb6
        • 2.Sxd6#
      • 1...Rd5
        • 2.Sc3#
      • 1...Sd5
        • 2.Sexd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(k);SBLOCK,XP(F)::S(I),XR(i)
  • Tries
    • Try
      • Q(D);P_SPINQ(D),XP(d)
      • Threat
        • P(C)
      • Vars
        • R(i);N_PINQ(D),N_SPINS(f)::QAR1(D)
        • R(i);N_GUARD::QAB1(D),XB(h)
        • S(c);N_PINQ(D),N_SPINS(f)::QAB1(D)
      • Refutation
        • S(c);
  • Actual
    • S(B);P_SPINS(B),XP(d)
    • Threat
      • R1(E),XS(f)
    • Vars
      • K(e);N_SPINB(h),N_SPINS(f),S_FLIGHT::R1(E),XS(f)
      • B(k);SBLOCK,XP(F)::S(I),XR(i)
      • R(i);N_PINS(B),N_SPINS(f)::S(B)
      • S(c);N_PINS(B),N_SPINS(f)::S(B),XR(i)
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