MESON Chess Problem Database

Problem Display
PID: 199805 (5r2/2p5/p1k1N2n/P1N1P3/2P1R1p1/p1p3P1/6BK/Q1nb4 w - - 0 1)

Handloser, Ralf Chris

Problemskak, 2014

5r2/2p5/p1k1N2n/P1N1P3/2P1R1p1/p1p3P1/6BK/Q1nb4

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Re2#
    • 1...Rb8
      • 2.Re2#
    • 1...Rc8
      • 2.Re2#
    • 1...Re8
      • 2.Re2#
    • 1...Rg8
      • 2.Re2#
    • 1...Rh8
      • 2.Re2#
    • 1...Bb3
      • 2.Rf4#
    • 1...Ba4
      • 2.Rf4#
    • 1...Se2
      • 2.Rf4#
    • 1...Sf5
      • 2.Re2#
    • 1...Sf7
      • 2.Re2#
  • Tries
    • 1.Sd8+?
      • 1...Kxc5
        • 2.Qxa3#
      • 1...Rxd8!
    • 1.Qb1?
      • threat
        • 2.Qb7#
      • 1...Rb8
        • 2.Re2#
      • 1...Bb3
        • 2.Rf4#
      • 1...Sb3!
  • Keys
    • 1.Qxa3!
      • threat
        • 2.Sd4#
      • 1...Rd8
        • 2.Sxd8#
      • 1...Se2
        • 2.Rf4#
      • 1...Sb3
        • 2.Qa4#
      • 1...Sf5
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(j);N_GUARD::B(B)+R(F)
    • B(b);N_GUARD::B(B)+R(F)
    • S(a);S_CUTB(b)::B(B)+R(F)
    • S(h);S_CUTR(j)::B(B)+R(F)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(g);P-FLIGHT,XS(H)::QAB(A),XP(c)
      • Refutation
        • R(j);XS(J)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(j);N_GUARD::B(B)+R(F)
        • B(b);N_GUARD::B(B)+R(F)
      • Refutation
        • S(a);
  • Actual
    • Q(A);XP(c)
    • Threat
      • S(J)
    • Vars
      • R(j);N_GUARD::S(J),XR(j)
      • S(a);S_CUTB(b)::B(B)+R(F)
      • S(a);S_CUTB(b)::QAB(A)
      • S(h);S_CUTR(j)::B(B)+R(F)
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