MESON Chess Problem Database

Problem Display
PID: 232592 (8/PP6/K2p4/1p2N2r/kpQ2P1r/1R6/2Pbqp2/n2n4 w - - 0 1)

Heyl, Peter

Freie Presse, 2007

8/PP6/K2p4/1p2N2r/kpQ2P1r/1R6/2Pbqp2/n2n4

#2

8 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Qxb5#
    • 1...Qg4
      • 2.Qxb5#
    • 1...Qe1
      • 2.Qxb5#
    • 1...Qe3
      • 2.Qxb5#
    • 1...Qe4
      • 2.Qxb5#
    • 1...Bc1
      • 2.Qxb4#
    • 1...Be3
      • 2.Qxb4#
    • 1...Bxf4
      • 2.Qxb4#
    • 1...Sxb3
      • 2.Qxb3#
    • 1...Sc3
      • 2.Qxb4#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Sb6#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Be3
        • 2.Qxb4#
      • 1...Qe3!
    • 1.a8Q?
      • threat
        • 2.Kb6#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Qe3
        • 2.Qxb5#
      • 1...Be3
        • 2.Qxb4#
      • 1...Rh8!
    • 1.a8R?
      • threat
        • 2.Kb6#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Qe3
        • 2.Qxb5#
      • 1...Be3
        • 2.Qxb4#
      • 1...Rh8!
  • Keys
    • 1.a8S!
      • threat
        • 2.Sb6#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...Qe3
        • 2.Qxb5#
      • 1...Be3
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(d);N_GUARD::QAB1(C),XP(i)
    • B(c);N_GUARD::QAR1(C),XP(g)
    • B(c);N_GUARD,XP(D)::QAR1(C),XP(g)
    • S(a);OGATE,XR(B)::QAB1(C),XS(a)
    • S(b);S_CUTB(c)::QAR1(C),XP(g)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(a);OGATE,XR(B)::QAB1(C),XS(a)
        • B(c);N_GUARD::QAR1(C),XP(g)
      • Refutation
        • Q(d);
    • Try
      • P(G);
      • Threat
        • QAR(G)+K(F)
      • Vars
        • S(a);OGATE,XR(B)::QAB1(C),XS(a)
        • Q(d);N_GUARD::QAB1(C),XP(i)
        • B(c);N_GUARD::QAR1(C),XP(g)
      • Refutation
        • R(j);
    • Try
      • P(G);
      • Threat
        • R(G)+K(F)
      • Vars
        • S(a);OGATE,XR(B)::QAB1(C),XS(a)
        • Q(d);N_GUARD::QAB1(C),XP(i)
        • B(c);N_GUARD::QAR1(C),XP(g)
      • Refutation
        • R(j);
  • Actual
    • P(G);
    • Threat
      • S(G)
    • Vars
      • S(a);OGATE,XR(B)::QAB1(C),XS(a)
      • Q(d);N_GUARD::QAB1(C),XP(i)
      • B(c);N_GUARD::QAR1(C),XP(g)
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