MESON Chess Problem Database

Problem Display
PID: 155702 (7B/q2p2R1/1p1P1Kb1/p7/3k4/Q7/6Bp/b1R5 w - - 0 1)

Tuxen, Harri Viggo

DSK's medlemsblad, 1945

(First published on Fri Oct 19 1945)

7B/q2p2R1/1p1P1Kb1/p7/3k4/Q7/6Bp/b1R5

#2

7 + 8

15422 Problemskak 2015
136 Problem Observer 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bf7
      • 2.Rg4#
    • 1...Be8
      • 2.Rg4#
  • Tries
    • 1.Kxg6?
      • threat
        • 2.Rxd7#
        • 2.Re7#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Bc3
        • 2.Qxc3#
      • 1...h1Q
        • 2.Rh7#
      • 1...h1R
        • 2.Rh7#
      • 1...Qb8
        • 2.Rg8#
      • 1...Qa8
        • 2.Rg8#
      • 1...Ke5!
    • 1.Rxg6?
      • threat
        • 2.Kf5#
        • 2.Kg5#
        • 2.Ke7#
        • 2.Kf7#
        • 2.Rg4#
      • 1...Bc3
        • 2.Qxc3#
      • 1...h1Q
        • 2.Rg4#
      • 1...h1R
        • 2.Rg4#
      • 1...Qb8
        • 2.Rg4#
      • 1...Qb7
        • 2.Kf5#
        • 2.Kg5#
        • 2.Ke7#
        • 2.Kf7#
      • 1...Qa8!
  • Keys
    • 1.Ke7!
      • threat
        • 2.Rxg6#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Ke5
        • 2.Rf7#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Bc2
        • 2.Rg4#
      • 1...Bd3
        • 2.Rg3#
      • 1...Be4
        • 2.Rg5#
      • 1...h1Q
        • 2.Rh7#
      • 1...h1R
        • 2.Rh7#
      • 1...Qb8
        • 2.Rg8#
      • 1...Qa8
        • 2.Rg8#
      • 1...Bb1
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Bf5
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Bh5
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Bf7
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rxf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Bh7
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rf7#
        • 2.Rxh7#
        • 2.Rg8#
      • 1...Be8
        • 2.Rg3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(C),XB(a)
    • B(f);OGATE::R(F)
  • Tries
    • Try
      • K(E);P-FLIGHT,XB(f)
      • Threat
        • DUALS(5)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
        • P(b);::B(G)+R(F)
        • Q(g);::B(G)+R(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);XB(f)
      • Threat
        • DUALS(5)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
        • P(b);::R(F)
        • Q(g);::R(F)
      • Refutation
        • Q(g);
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • DUALS(4)
    • Vars
      • K(c);S_FLIGHT::B(G)+R(F)
      • B(a);N_GUARD::QAB1(C),XB(a)
      • B(f);OGATE::B(G)+R(F),DCHECK
      • B(f);OGATE::B(G)+R(F)
      • P(b);::B(G)+R(F)
      • Q(g);::B(G)+R(F)
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