MESON Chess Problem Database

Problem Display
PID: 17041 (k7/8/1K6/3b4/8/6R1/8/1Q6 w - - 0 1)

Lindgren, Bo Waldemar

Tidskrift for Schack, 1945

k7/8/1K6/3b4/8/6R1/8/1Q6

#2

3 + 2

17145 Svenska Miniatyrer i urval (Froberg/Hultberg) 1978
4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Rg8#
    • 1...Bg2
      • 2.Rg8#
    • 1...Bf3
      • 2.Rg8#
    • 1...Be4
      • 2.Rg8#
    • 1...Bg8
      • 2.Rxg8#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Ra3#
        • 2.Qb8#
      • 1...Ka7
        • 2.Ra3#
      • 1...Bf3
        • 2.Qa2#
        • 2.Qa1#
        • 2.Qb8#
      • 1...Bc4
        • 2.Qb7#
        • 2.Qb8#
      • 1...Bc6
        • 2.Qb8#
      • 1...Bb7
        • 2.Qxb7#
      • 1...Bb3!
    • 1.Qa1+?
      • 1...Ba2
        • 2.Rg8#
      • 1...Kb8!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Rg8#
        • 2.Qe8#
      • 1...Kb8
        • 2.Qe8#
      • 1...Bxe4
        • 2.Rg8#
      • 1...Bc6
        • 2.Rg8#
      • 1...Bb7
        • 2.Rg8#
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::R(B)
    • B(a);N_GUARD::R(B),XB(a)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::R(B)
        • B(a);::QAR1(A)
        • B(a);N_GUARD::QAB1(A),XB(a)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • B(a);P_SPINB(a)::R(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);P_PINB(a)
    • Threat
      • DUALS(2)
    • Vars
      • K(b);N_SPINB(a),P-FLIGHT::QAR(A)
      • B(a);N_SPINB(a),XQ(A)::R(B)
      • B(a);::R(B)
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Developed and maintained by Brian Stephenson.
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