MESON Chess Problem Database

Problem Display
PID: 258807 (2n5/2r5/p1Pp2R1/3kp3/BRN1p2r/K3Q3/8/8 w - - 0 1)

Tkachenko, Sergiy Ivanovich

Die Schwalbe, 2022

2n5/2r5/p1Pp2R1/3kp3/BRN1p2r/K3Q3/8/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Sxb6#
      • 2.Rxd6#
    • 1...Sa7
      • 2.Sb6#
      • 2.Rxd6#
    • 1...Se7
      • 2.Sb6#
      • 2.Rxd6#
  • Tries
    • 1.Sa5?
      • threat
        • 2.Bb3#
      • 1...Rxc6
        • 2.Bxc6#
      • 1...Sb6!
    • 1.Sxe5?
      • threat
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qg5#
      • 1...dxe5
        • 2.Bb3#
      • 1...Rh3!
    • 1.Qc5+?
      • 1...dxc5
        • 2.Se3#
      • 1...Kxc5!
    • 1.Qc3?
      • threat
        • 2.Se3#
      • 1...Kc5
        • 2.Se3#
        • 2.Sb6#
      • 1...e3
        • 2.Sxe3#
      • 1...Rh3!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Sa5#
      • 1...Kxc6
        • 2.Sxe5#
      • 1...Rxc6
        • 2.Sb6#
      • 1...Sb6
        • 2.Rxd6#
      • 1...a5
        • 2.Sxa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • B(C)
      • Vars
        • R(g);OGATE,XP(F)::B(C),XR(g)
      • Refutation
        • S(h);
    • Try
      • S(E);XP(d)
      • Threat
        • QAR1(B)
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINP(a),XS(E)::QAR2(B)
        • P(f);SBLOCK,XS(E)::B(C)
      • Refutation
        • R(b);P_PINQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • P(f);SBLOCK,XQ(B)::S(E)
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Threat
        • S(E)
      • Vars
        • P(a);::S(E),XP(a)
      • Refutation
        • R(b);P_PINQ(B)
  • Actual
    • B(C);
    • Threat
      • B(C)+S(E)
    • Vars
      • K(c);N_GUARD,P_SPINP(f),S_FLIGHT,XP(F)::S(E),XP(d)
      • R(g);SBLOCK,XP(F)::B(C)+S(E),DCHECK
      • S(h);N_GUARD::R1(G),XP(f)
      • P(e);::B(C)+S(E),XP(e)
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