MESON Chess Problem Database

Problem Display
PID: 162797 (1r5q/3R1N2/3P3b/p2n4/r2k4/BPN2PnQ/1PPP4/2KR4 w - - 0 1)

Nichtawitz, Alois

Die Schwalbe, 2016

1r5q/3R1N2/3P3b/p2n4/r2k4/BPN2PnQ/1PPP4/2KR4

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Sxb5#
    • 1...Ra8
      • 2.Sb5#
    • 1...Rc8
      • 2.Sb5#
    • 1...Rd8
      • 2.Sb5#
    • 1...Re8
      • 2.Sb5#
    • 1...Rf8
      • 2.Sb5#
    • 1...Rg8
      • 2.Sb5#
    • 1...Sf1
      • 2.Se2#
    • 1...Sh1
      • 2.Se2#
    • 1...Se2+
      • 2.Sxe2#
    • 1...Se4
      • 2.Se2#
    • 1...Sf5
      • 2.Se2#
    • 1...Sh5
      • 2.Se2#
    • 1...Sc7
      • 2.dxc7#
    • 1...Se7
      • 2.dxe7#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxd5#
      • 1...Bxd2+
        • 2.Rxd2#
      • 1...Se2+
        • 2.Sxe2#
      • 1...Sxc3
        • 2.bxc3#
      • 1...Sb4
        • 2.Qc4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Se3
        • 2.dxe3#
      • 1...Sf4
        • 2.Qe3#
      • 1...Sb6
        • 2.Sb5#
      • 1...Sf6
        • 2.Qe5#
      • 1...Sc7
        • 2.dxc7#
      • 1...Se7
        • 2.dxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 11
  • Sets
    • R(g);N_GUARD::S(H),XR(g)
    • R(g);N_GUARD::S(H)
    • S(a);N_GUARD::S(H)
    • S(a);CHECK,N_GUARD::S(H),XS(a)
    • S(e);OGATE::R(L)+P(K),XS(e)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J),XS(e)
    • Vars
      • B(f);CHECK,OGATE,P_SPINB(f),XP(E)::R(B),XB(f)
      • S(a);CHECK,N_GUARD::S(H),XS(a)
      • S(e);OGATE,XS(H)::P(C),XS(e)
      • S(e);OGATE::QAR1(J)
      • Q(h);N_GUARD::QAB1(J),XQ(h)
      • R(g);N_GUARD::S(H),XR(g)
      • S(e);N_PINP(E)::R(B)+P(E)DCHECK,XS(e)
      • S(e);N_GUARD,N_PINP(E),S_CUTB(f)::QAB1(J)
      • S(e);S_CUTR(g)::S(H)
      • S(e);S_CUTQ(h)::QAB1(J)
      • S(e);OGATE::R(L)+P(K),XS(e)
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