MESON Chess Problem Database

Problem Display
PID: 284085 (3n4/1Q3p2/2r5/4PkNB/3R1P2/1bP5/5K2/8 w - - 0 1)

Saint-Requier, Remi

Zaragoza-65 JT (Problemas), 2025

3n4/1Q3p2/2r5/4PkNB/3R1P2/1bP5/5K2/8

#2

8 + 5

5454 Near Snap 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qe4#
    • 1...Rc4
      • 2.Qe4#
    • 1...Rc5
      • 2.Qe4#
    • 1...Ra6
      • 2.Qe4#
    • 1...Rb6
      • 2.Qe4#
    • 1...Rd6
      • 2.Qe4#
    • 1...Re6
      • 2.Qe4#
    • 1...Rf6
      • 2.Qe4#
    • 1...Rg6
      • 2.Qe4#
    • 1...Rh6
      • 2.Qe4#
    • 1...Rc7
      • 2.Qe4#
    • 1...Rc8
      • 2.Qe4#
    • 1...Be6
      • 2.Qb1#
    • 1...Se6
      • 2.Qxf7#
    • 1...f6
      • 2.Qh7#
  • Tries
    • 1.Qxc6?
      • threat
        • 2.Qe4#
        • 2.Qf6#
      • 1...Bc2
        • 2.Qf6#
      • 1...Bd5
        • 2.Qf6#
      • 1...Be6
        • 2.Qe4#
      • 1...Se6
        • 2.Qe4#
      • 1...f6
        • 2.Qe4#
        • 2.Qxf6#
      • 1...Sxc6!
    • 1.Qxb3?
      • threat
        • 2.Qc2#
        • 2.Qb1#
      • 1...Rb6
        • 2.Qc2#
      • 1...Rxc3!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sg7#
      • 1...Kxe6
        • 2.Qd7#
      • 1...Rxe6
        • 2.Qe4#
      • 1...Bxe6
        • 2.Qb1#
      • 1...Sxe6
        • 2.Qxf7#
      • 1...fxe6
        • 2.Qh7#

Anticipated by 59007(1998)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 12
  • Sets
    • R(c);OGATE,XP(B)::QAB1(H)
    • R(c);OGATE::QAB1(H)
    • B(a);OGATE::QAB(H)
    • S(e);N_GUARD,S_CUTB(a),S_CUTR(c)::QAR2(H),XP(d)
    • P(d);OGATE::QAB(H)
  • Tries
    • Try
      • Q(H);XR(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(H)
        • B(a);::QAB1(H)
        • S(e);::QAB1(H)
      • Refutation
        • S(e);XQ(H)
    • Try
      • Q(H);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB(H)
      • Refutation
        • R(c);XP(B)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(F)::QAB1(H)
      • R(c);OGATE,SBLOCK,XS(F)::QAB1(H)
      • B(a);OGATE,SBLOCK,XS(F)::QAB(H)
      • S(e);N_GUARD,XS(F)::QAR2(H),XP(d)
      • P(d);OGATE,SBLOCK,XS(F)::QAB(H)
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