MESON Chess Problem Database

Problem Display
PID: 57254 (k6r/1p6/1P6/1P6/8/8/1K3P2/5QRB w - - 0 1)

Cuppini, Alessandro

Troll, 1996

k6r/1p6/1P6/1P6/8/8/1K3P2/5QRB

#2

7 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh1
      • 2.Rg8#
    • 1...Rh2
      • 2.Rg8#
    • 1...Rh3
      • 2.Rg8#
    • 1...Rh4
      • 2.Rg8#
    • 1...Rh5
      • 2.Rg8#
    • 1...Rh6
      • 2.Rg8#
    • 1...Rh7
      • 2.Rg8#
    • 1...Rb8
      • 2.Qa1#
    • 1...Rg8
      • 2.Rxg8#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qxb7#
      • 1...Kb8
        • 2.Qxb7#
      • 1...Rxh1
        • 2.Qg8#
      • 1...Rh7
        • 2.Qg8#
      • 1...Rb8
        • 2.Ra1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD,N_SPINP(a),XB(C)::R(B)
    • R(c);N_GUARD,P_PINP(E)::R(B)
    • R(c);N_GUARD::R(B)
    • R(c);N_GUARD,SBLOCK::R(B)
    • R(c);SBLOCK::QAB(A)
    • R(c);N_GUARD::R(B),XR(c)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XP(a)
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(A),XP(a)
      • R(c);N_GUARD,XB(C)::QAR(A)
      • R(c);N_GUARD::QAR(A)
      • R(c);SBLOCK::R(B)
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