MESON Chess Problem Database

Problem Display
PID: 239007 (3R2bb/4pp2/K7/R7/2N1k3/1N3r1n/QPp3P1/2B5 w - - 0 1)

Petite, Efren

Problemas, 2014

3R2bb/4pp2/K7/R7/2N1k3/1N3r1n/QPp3P1/2B5

#2

9 + 8

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Sbd2#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Be5
      • 2.Rxe5#
    • 1...Sf4
      • 2.Sbd2#
    • 1...f5
      • 2.Sc5#
    • 1...f6
      • 2.Rd4#
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc6#
      • 1...Rf6+
        • 2.Sb6#
      • 1...Re3
        • 2.Scd2#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Be5
        • 2.Rxe5#
      • 1...e5
        • 2.Se3#
      • 1...Rd3
        • 2.Sd6#
      • 1...Rf5
        • 2.Se5#
      • 1...Sf4
        • 2.Sbd2#
      • 1...f5
        • 2.Sc5#
      • 1...f6
        • 2.Rd4#

Anticipated by 21863(1921-1922)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK::S(E)
    • B(h);N_GUARD::R1(I),XB(h)
    • B(h);N_GUARD::R1(G),XB(h)
    • S(c);SBLOCK::S(E)
    • P(f);SBLOCK::S(E)
    • P(f);S_CUTB(h)::R1(I)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • R(b);CHECK,S_CUTB(h)::QAR(B)+S(F)
      • R(b);SBLOCK::QAR(B)+S(F),DCHECK
      • B(h);N_GUARD::R1(I),XB(h)
      • B(h);N_GUARD::R1(G),XB(h)
      • P(e);S_CUTB(h)::QAR(B)+S(F)
      • R(b);SBLOCK::QAR(B)+S(F)
      • S(c);SBLOCK::S(E)
      • P(f);SBLOCK::S(E)
      • P(f);S_CUTB(h)::R1(I)
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