MESON Chess Problem Database

Problem Display
PID: 228265 (5rn1/p2Q1bK1/1p3B2/1r4p1/qb4pp/3P2kp/2p5/4NR1n w - - 0 1)

Peris Pardo, Julio

SEPA, 1944

5rn1/p2Q1bK1/1p3B2/1r4p1/qb4pp/3P2kp/2p5/4NR1n

#2

6 + 15

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Bxe5#
  • Tries
    • 1.Qxg4+?
      • 1...Kh2
        • 2.Sf3#
        • 2.Qg1#
      • 1...Kxg4!
    • 1.Qd6+?
      • 1...Re5
        • 2.Bxe5#
        • 2.Qxe5#
      • 1...Bxd6!
    • 1.Qc7+?
      • 1...Re5
        • 2.Bxe5#
        • 2.Qxe5#
      • 1...Bd6!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qg1#
      • 1...Kh2
        • 2.Qg1#
      • 1...Bc5
        • 2.Be5#
      • 1...Bd5
        • 2.Qe5#
      • 1...Sf2
        • 2.Qxf2#
      • 1...h2
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(i);N_GUARD::B(D),XR(i)
  • Tries
    • Try
      • Q(E);CHECK,XP(g)
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • B(f);XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(c);S_FLIGHT::QAB1(E)
      • B(f);S_CUTR(i)::B(D)
      • B(m);S_CUTR(i)::QAB(E)
      • S(a);N_GUARD::QAB1(E),XS(a)
      • P(d);SBLOCK::QAR2(E)
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