MESON Chess Problem Database

Problem Display
PID: 72123 (6B1/4Q3/4r2p/4p1nK/2nk4/Rq2N1N1/2PB4/5R2 w - - 0 1)

Stubbs, Arthur Goodwin

Chess, 1952

6B1/4Q3/4r2p/4p1nK/2nk4/Rq2N1N1/2PB4/5R2

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Rd3#
    • 1...Qa4
      • 2.Rd3#
    • 1...Qb1
      • 2.Rd3#
    • 1...Qb2
      • 2.Rd3#
    • 1...Qd3
      • 2.Rxd3#
    • 1...Qb4
      • 2.Rd3#
    • 1...Qb5
      • 2.Rd3#
    • 1...Qb6
      • 2.Rd3#
    • 1...Qb7
      • 2.Rd3#
    • 1...Qb8
      • 2.Rd3#
    • 1...Ra6
      • 2.Sef5#
    • 1...Rb6
      • 2.Sef5#
    • 1...Rc6
      • 2.Sef5#
    • 1...Rg6
      • 2.Sef5#
    • 1...Se4
      • 2.Se2#
      • 2.Sgf5#
  • Keys
    • 1.Bb4!
      • threat
        • 2.Qc5#
      • 1...Kxe3
        • 2.Qc5#
      • 1...Qxb4
        • 2.Rd3#
      • 1...Rxe7
        • 2.Sef5#
      • 1...Rc6
        • 2.Sef5#
      • 1...Rd6
        • 2.Sef5#
      • 1...Sd6
        • 2.Qa7#
      • 1...Se4
        • 2.Sgf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 12
  • Sets
    • Q(a);OGATE::R1(D)
    • Q(a);OGATE::R1(D),XQ(a)
    • R(f);::S(E)
  • Actual
    • B(C);
    • Threat
      • QAB1(H)
    • Vars
      • K(c);P_SPINQ(a),S_FLIGHT,XS(E)::QAB(H)
      • Q(a);OGATE,XB(C)::R1(D)
      • R(f);XQ(H)::S(E)
      • R(f);::S(E)
      • S(b);N_GUARD,S_CUTR(f)::QAB(H)
      • S(e);SBLOCK::S(F)
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