MESON Chess Problem Database

Problem Display
PID: 161717 (5B2/q2N4/8/pp2p1R1/2kN2R1/2P2n1Q/1Kn1P3/3B4 w - - 0 1)

Kunze, Otto

Welt im Bild, 1936

(First published on Sun May 3 1936)

5B2/q2N4/8/pp2p1R1/2kN2R1/2P2n1Q/1Kn1P3/3B4

#2

10 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Sb6#
    • 1...Qb6
      • 2.Sxb6#
    • 1...Qa8
      • 2.Sb6#
    • 1...Sce1
      • 2.Bb3#
    • 1...Sa3
      • 2.Bb3#
    • 1...Se3
      • 2.Bb3#
    • 1...Sb4
      • 2.Bb3#
    • 1...Scxd4
      • 2.Bb3#
  • Tries
    • 1.Sxc2+?
      • 1...Qd4
        • 2.Se3#
        • 2.Sb6#
      • 1...Sd4
        • 2.Se3#
      • 1...e4
        • 2.Sa3#
      • 1...Kd5!
    • 1.Sxf3+?
      • 1...Qd4
        • 2.Sb6#
      • 1...Sd4
        • 2.Bb3#
      • 1...e4
        • 2.Sd2#
      • 1...Kd5!
    • 1.Sxe5+?
      • 1...Kd5
        • 2.Qxf3#
        • 2.e4#
      • 1...Sxe5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.e4#
      • 1...Kd5
        • 2.e4#
      • 1...Qxd4
        • 2.Sb6#
      • 1...Scxd4
        • 2.Bb3#
      • 1...Sfxd4
        • 2.Qf7#
      • 1...exd4
        • 2.exf3#
        • 2.e3#
      • 1...Sce1
        • 2.Bb3#
      • 1...Se3
        • 2.Bb3#
      • 1...Sb4
        • 2.Bb3#
      • 1...Sfe1
        • 2.Qf7#
      • 1...Sg1
        • 2.Qf7#
      • 1...Sd2
        • 2.Qf7#
      • 1...Sh2
        • 2.Qf7#
      • 1...e4
        • 2.exf3#
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • Q(g);N_GUARD,P_PINP(D),P_SPINQ(g),XS(F)::S(I)
    • Q(g);N_GUARD::S(I),XQ(g)
    • Q(g);N_GUARD::S(I)
    • S(a);OGATE::B(A)
    • S(a);OGATE,P_SPINS(a),XS(F)::B(A)
  • Tries
    • Try
      • S(F);CHECK,XS(a)
      • Vars
        • S(b);P_SPINS(b)::S(F)
        • P(f);P_SPINP(f)::S(F)
      • Refutation
        • K(c);P_SPINP(f),S_FLIGHT
    • Try
      • S(F);CHECK,XS(b)
      • Vars
        • Q(g);P_PINP(D),P_SPINQ(g)::S(I)
        • S(a);OGATE,P_SPINS(a)::B(A)
        • P(f);P_SPINP(f)::S(F)
      • Refutation
        • K(c);P_SPINP(f),S_FLIGHT
    • Try
      • S(I);CHECK,XP(f)
      • Refutation
        • S(b);XS(I)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+P(C)
    • Vars
      • K(c);P_SPINP(f),S_FLIGHT::P(C)
      • Q(g);N_GUARD,P_PINP(D),P_SPINQ(g),XS(F)::S(I)
      • S(a);OGATE,P_SPINS(a),XS(F)::B(A)
      • S(b);OGATE,P_SPINS(b),XS(F)::QAB(E)
      • S(a);OGATE::B(A)
      • S(b);OGATE::QAB(E)
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