MESON Chess Problem Database

Problem Display
PID: 52602 (b6b/8/5p2/1Q4p1/2n1kN2/2BNp3/6K1/4RR2 w - - 0 1)

Anonymous

Source?, 0000

b6b/8/5p2/1Q4p1/2n1kN2/2BNp3/6K1/4RR2

#2

7 + 7

5309 O Mosqueteiro do Rei 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...gxf4
      • 2.Sf2#
    • 1...f5
      • 2.Sc5#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qxc4#
        • 2.Qf5#
      • 1...Bd5
        • 2.Sc5#
      • 1...Sb2
        • 2.Sg3#
        • 2.Qf5#
      • 1...Sd2
        • 2.Sg3#
        • 2.Qf5#
      • 1...Sa3
        • 2.Sg3#
        • 2.Qf5#
      • 1...Sa5
        • 2.Sg3#
        • 2.Qf5#
      • 1...Se5
        • 2.Sg3#
      • 1...Sb6
        • 2.Sg3#
        • 2.Qf5#
      • 1...Sd6
        • 2.Sg3#
      • 1...f5
        • 2.Qxf5#
      • 1...Kxd3+!
    • 1.Rf3?
      • threat
        • 2.Sf2#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Se5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qxc4#
      • 1...Kxd3
        • 2.Qb1#
      • 1...Bxd5
        • 2.Sc5#
      • 1...Sb2
        • 2.Rxe3#
      • 1...Sd2
        • 2.Rxe3#
      • 1...Sa3
        • 2.Rxe3#
      • 1...Sa5
        • 2.Rxe3#
      • 1...Se5
        • 2.Rxe3#
      • 1...Sb6
        • 2.Rxe3#
      • 1...Sd6
        • 2.Rxe3#
      • 1...f5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::QAB1(G),XB(f)
    • P(d);SBLOCK,XS(F)::S(E)
    • P(e);SBLOCK::S(E)
  • Tries
    • Try
      • S(F);N_PINP(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);SBLOCK::S(E)
        • S(b);::S(F)
        • P(e);::QAB1(G),XP(e)
      • Refutation
        • K(c);CHECK,P_SPINS(b),S_FLIGHT,XS(E)
    • Try
      • R(B);
      • Threat
        • S(E)
      • Vars
        • B(f);N_GUARD::QAB1(G),XB(f)
      • Refutation
        • S(b);
  • Actual
    • S(F);
    • Threat
      • QAR2(G),XS(b)
    • Vars
      • K(c);N_SPINP(a),OGATEB,P_PINS(F),P_SPINS(b),S_FLIGHT,XS(E)::QAB(G)
      • B(f);SBLOCK,XS(F)::S(E)
      • S(b);N_GUARD::R1(A),XP(a)
      • P(e);SBLOCK::S(E)
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