MESON Chess Problem Database

Problem Display
PID: 60149 (2b4K/Rr6/1Q2n3/8/5NP1/5N2/p4B2/Rr5k w - - 0 1)

Robinson, Frank

3rd Prize, Brisbane Courier, 1929

2b4K/Rr6/1Q2n3/8/5NP1/5N2/p4B2/Rr5k

#2

8 + 6

881 The Australasian Chess Review 1929

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Rxc1#
    • 1...Rd1
      • 2.Rxd1#
    • 1...Re1
      • 2.Rxe1#
    • 1...Rf1
      • 2.Rxf1#
    • 1...Rg1
      • 2.Rxg1#
    • 1...Rxb6
      • 2.Rh7#
    • 1...Rh7+
      • 2.Rxh7#
    • 1...Rb8
      • 2.Rh7#
    • 1...Sd4
      • 2.Qh6#
    • 1...Sc5
      • 2.Qh6#
    • 1...Sc7
      • 2.Qh6#
    • 1...Sd8
      • 2.Qh6#
    • 1...Sf8
      • 2.Qh6#
  • Keys
    • 1.Be1!
      • threat
        • 2.Qg1#
      • 1...Rh7+
        • 2.Rxh7#
      • 1...Rxe1
        • 2.Rxe1#
      • 1...R1xb6
        • 2.Bb4#
      • 1...R7xb6
        • 2.Rh7#
      • 1...Sd4
        • 2.Qh6#
      • 1...Sc5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(a);OGATE::R(A),XR(a)
    • R(a);OGATE::R1(A),XR(a)
    • R(e);OGATE,XQ(F)::R(G)
    • R(e);CHECK,OGATE::R(G),XR(e)
    • R(e);OGATE::R(G)
    • S(d);OGATE::QAR(F)
  • Actual
    • B(B);N_PINR(a)
    • Threat
      • QAR1(F)
    • Vars
      • R(e);CHECK,OGATE::R(G),XR(e)
      • R(a);OGATE,P_SPINR(a),XB(B)::R(A),XR(a)
      • R(a);OGATEB,XQ(F)::R(A)+B(B)
      • R(e);OGATE,XQ(F)::R(G)
      • S(d);OGATE::QAR(F)
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