MESON Chess Problem Database

Problem Display
PID: 259103 (8/8/3BP3/1R2P2P/2N1k2P/7P/Q3N3/4K3 w - - 0 1)

Kuhne, H

Deutsche Schachzeitung, 1937

8/8/3BP3/1R2P2P/2N1k2P/7P/Q3N3/4K3

#2

11 + 1

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qa8#
  • Tries
    • 1.Sd2+?
      • 1...Kd3
        • 2.Rb3#
        • 2.Qb3#
      • 1...Ke3
        • 2.Rb3#
        • 2.Qb3#
        • 2.Qa3#
      • 1...Kf5!
    • 1.Bb4?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd3!
    • 1.Bc7?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd3!
    • 1.Be7?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd3!
    • 1.Bb8?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd3!
    • 1.Bf8?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5
        • 2.Sd6#
      • 1...Kd3!
    • 1.Rc5?
      • 1...Kd3
        • 2.Qb1#
      • 1...Kf3
        • 2.Qa8#
      • 1...Kf5!
    • 1.Qd2?
      • 1...Kf3
        • 2.Qd5#
      • 1...Kf5!
  • Keys
    • 1.Rb4!
      • 1...Kd3
        • 2.Qb1#
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Sa5#
      • 1...Kf5
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB(B)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
        • K(a);N_GUARD,S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
        • K(a);N_GUARD,S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
        • K(a);N_GUARD,S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
        • K(a);N_GUARD,S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
        • K(a);N_GUARD,S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(G);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • K(a);N_GUARD,S_FLIGHT::QAB(B)+S(E)
      • K(a);N_GUARD,S_FLIGHT::S(E)
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