MESON Chess Problem Database

Problem Display
PID: 250913 (K7/6B1/Q3P2b/1p1p1k1P/5rp1/1p1N3N/5rP1/1B3R2 w - - 0 1)

Niemeijer, Meindert

Schakend Nederland, 1981

K7/6B1/Q3P2b/1p1p1k1P/5rp1/1p1N3N/5rP1/1B3R2

#2

10 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Sb2#
    • 1...Rb2
      • 2.Sxb2#
    • 1...Ra4
      • 2.Sb4#
    • 1...Rb4
      • 2.Sxb4#
  • Keys
    • 1.e7!
      • threat
        • 2.Qg6#
      • 1...Ke4
        • 2.Qe6#
      • 1...Ra2
        • 2.Sb2#
      • 1...Ra4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD,P_PINQ(G),P_SPINR(c)::B(A)+S(D)
    • R(a);N_GUARD,P_SPINR(c)::B(A)+S(D),XR(a)
    • R(c);N_GUARD,P_PINQ(G),P_SPINR(a)::B(A)+S(D)
    • R(c);N_GUARD,P_SPINR(a)::B(A)+S(D),XR(c)
  • Actual
    • P(H);
    • Threat
      • QAB1(G)
    • Vars
      • K(g);N_GUARD,S_FLIGHT::QAR2(G)
      • R(a);N_GUARD,P_PINQ(G),P_SPINR(c)::B(A)+S(D)
      • R(c);N_GUARD,P_PINQ(G),P_SPINR(a)::B(A)+S(D)
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