MESON Chess Problem Database

Problem Display
PID: 121615 (2B4K/6Qp/3P3B/2P5/1Pn1k3/r1n5/2NPP3/q3N1b1 w - - 0 1)

Salazar Lopez, Francisco

Source?, 1975

2B4K/6Qp/3P3B/2P5/1Pn1k3/r1n5/2NPP3/q3N1b1

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Se3
      • 2.Qd4#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qf5#
      • 1...Kd5
        • 2.Bb7#
      • 1...Sxe2
        • 2.Bb7#
      • 1...Sxd6
        • 2.Qe6#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Sb1
        • 2.Bb7#
      • 1...Sd1
        • 2.Bb7#
      • 1...Sa2
        • 2.Bb7#
      • 1...Sa4
        • 2.Bb7#
      • 1...Sb5
        • 2.Bb7#
      • 1...Sd5
        • 2.Bf5#
      • 1...Se3
        • 2.Qd4#
        • 2.Qe6#
      • 1...Se5!
    • 1.Qg4+?
      • 1...Ke5
        • 2.Qf5#
        • 2.Qe6#
      • 1...Kd5!
    • 1.Qe7+?
      • 1...Kd5
        • 2.Bb7#
      • 1...Se5!
    • 1.Qxh7+?
      • 1...Ke5
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.d4!
      • threat
        • 2.Qg2#
      • 1...Kd5
        • 2.Qb7#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Sxe2
        • 2.Qb7#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb1
        • 2.Qb7#
      • 1...Sd1
        • 2.Qb7#
      • 1...Sa2
        • 2.Qb7#
      • 1...Sa4
        • 2.Qb7#
      • 1...Sb5
        • 2.Qb7#
      • 1...Sd5
        • 2.Qxh7#
      • 1...Sd2
        • 2.Qe5#
      • 1...Se3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::QAR1(I)
    • B(b);N_GUARD,P_PINQ(I)::QAR1(I),XB(b)
    • S(e);S_CUTB(b)::QAR1(I)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • K(f);S_FLIGHT::B(J)
        • S(d);N_GUARD,P_PINQ(I),XP(D)::B(J)
        • S(e);N_GUARD,XP(G)::QAR2(I)
        • B(b);N_GUARD,P_PINQ(I)::QAR1(I),XB(b)
        • S(d);N_GUARD,P_PINQ(I)::B(J)
        • S(d);P_PINQ(I),SBLOCK::B(J)
      • Refutation
        • S(e);
    • Try
      • Q(I);CHECK
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);S_FLIGHT::B(J)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • Q(I);CHECK,XP(g)
      • Vars
        • K(f);P-FLIGHT::QAR1(I)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAB(I)
    • Vars
      • K(f);S_FLIGHT::QAB(I)
      • B(b);OGATE,P_PINQ(I),XP(C)::QAR1(I),XB(b)
      • S(d);N_GUARD,XP(D)::QAB(I)
      • S(e);N_GUARD::QAR1(I),XS(e)
      • S(d);N_GUARD::QAB(I)
      • S(d);SBLOCK::QAB(I),XP(g)
      • S(e);N_GUARD::QAR1(I)
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