MESON Chess Problem Database

Problem Display
PID: 228031 (8/4P1r1/n4Np1/1P1Np3/2pk1P2/Q7/3K2n1/7b w - - 0 1)

Glockner, Herbert

Freie Presse, 1972

8/4P1r1/n4Np1/1P1Np3/2pk1P2/Q7/3K2n1/7b

#2

7 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sxf4
      • 2.Qe3#
    • 1...Sh4
      • 2.Qe3#
    • 1...Sb4
      • 2.Qa7#
    • 1...Sc5
      • 2.Qc3#
    • 1...Sc7
      • 2.Qa7#
    • 1...Sb8
      • 2.Qa7#
    • 1...c3+
      • 2.Qxc3#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Se2#
        • 2.Qd6#
      • 1...exf4
        • 2.Qd6#
      • 1...Sb4
        • 2.Qa7#
      • 1...Se1
        • 2.Se2#
      • 1...Se3
        • 2.Se2#
      • 1...Sh4
        • 2.Se2#
      • 1...Sc5
        • 2.Se2#
      • 1...Sc7
        • 2.Se2#
        • 2.Qa7#
      • 1...Sxf4!
    • 1.Se3?
      • threat
        • 2.Sc2#
        • 2.Qd6#
      • 1...c3+
        • 2.Qxc3#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Sxf4
        • 2.Sc2#
      • 1...exf4
        • 2.Qd6#
      • 1...Sb4
        • 2.Qa7#
      • 1...Sh4
        • 2.Sc2#
      • 1...Sc5
        • 2.Sc2#
        • 2.Qc3#
      • 1...Sc7
        • 2.Sc2#
        • 2.Qa7#
      • 1...Se1!
    • 1.Sb4?
      • threat
        • 2.Sc2#
        • 2.Sc6#
      • 1...c3+
        • 2.Qxc3#
      • 1...Sxf4
        • 2.Sc2#
        • 2.Qe3#
      • 1...Sxb4
        • 2.Qa7#
      • 1...exf4
        • 2.Sc6#
      • 1...Se1
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sh4
        • 2.Sc2#
        • 2.Qe3#
      • 1...Sb8
        • 2.Sc2#
        • 2.Qa7#
      • 1...Kc5!
    • 1.Qb2+?
      • 1...c3+
        • 2.Qxc3#
      • 1...Kc5!
    • 1.Qa1+?
      • 1...c3+
        • 2.Qxc3#
      • 1...Kc5!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Se6#
        • 2.Qd6#
      • 1...c3+
        • 2.Qxc3#
      • 1...Rxe7
        • 2.Qd6#
      • 1...Sxf4
        • 2.Qe3#
      • 1...Sxc7
        • 2.Qa7#
      • 1...exf4
        • 2.Qd6#
      • 1...Sb4
        • 2.Se6#
        • 2.Qa7#
      • 1...Se1
        • 2.Se6#
        • 2.Qe3#
      • 1...Se3
        • 2.Se6#
        • 2.Qxe3#
      • 1...Sh4
        • 2.Se6#
        • 2.Qe3#
      • 1...Sc5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::QAB1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD,XP(C)::QAB1(B)
    • S(f);OGATE::QAB(B)
    • S(f);SBLOCK::QAB1(B)
    • P(c);CHECK::QAB1(B),XP(c)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);XP(C)::QAR2(B)
        • S(f);OGATE::QAB(B)
        • S(b);::S(E)
        • S(f);::S(E)
      • Refutation
        • S(b);XP(C)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);CHECK::QAB1(B),XP(c)
        • S(b);OGATE,XS(E)::QAB1(B),XS(b)
        • S(b);XP(C)::S(E)
        • P(e);XP(C)::QAR2(B)
        • S(f);OGATE::QAB(B)
        • S(b);::S(E)
      • Refutation
        • S(b);
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);CHECK::QAB1(B),XP(c)
        • S(f);OGATE,XS(E)::QAB(B)
        • P(e);XP(C)::S(E)
        • S(b);N_GUARD::QAB1(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • P(c);CHECK,P_SPINP(c)::QAB1(B),XP(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • P(c);CHECK,P_SPINP(c)::QAB1(B),XP(c)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • P(c);CHECK::QAB1(B),XP(c)
      • R(h);XP(G)::QAR2(B)
      • S(b);N_GUARD,XP(C)::QAB1(B)
      • S(f);OGATE,XS(E)::QAB(B)
      • P(e);XP(C)::QAR2(B)
      • S(f);SBLOCK::QAB1(B)
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