MESON Chess Problem Database

Problem Display
PID: 86648 (N4B2/p3r3/r2n3R/1pkB4/PR6/P2p4/3N4/K1n4Q w - - 0 1)

Aloni, Yoel

Budapesti Sakkszovetseg, 1986

N4B2/p3r3/r2n3R/1pkB4/PR6/P2p4/3N4/K1n4Q

#2

10 + 8

6490 yacpdb 2009
15148 Sadier Collection 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Sb3#
    • 1...Se2
      • 2.Sb3#
    • 1...Sb3+
      • 2.Sxb3#
  • Keys
    • 1.Bb7!
      • threat
        • 2.Qd5#
      • 1...Sb3+
        • 2.Sxb3#
      • 1...Rxb7
        • 2.Rh5#
      • 1...Sxb7
        • 2.Qh5#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Re4
        • 2.Sxe4#
      • 1...Re5
        • 2.Qxc1#
      • 1...Se4
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);CHECK,N_GUARD::S(C),XS(a)
  • Actual
    • B(G);
    • Threat
      • QAR1(B)
    • Vars
      • S(a);CHECK,N_GUARD::S(C),XS(a)
      • R(h);N_GUARD,P_SPINS(f),XB(G)::R(H)
      • S(f);N_GUARD,P_SPINR(h),XB(G)::QAR(B)
      • R(e);N_GUARD::QAR1(B),XR(e)
      • R(h);N_GUARD,P_SPINS(f)::S(C),XR(h)
      • R(h);P_SPINS(f)::QAR(B),XS(a)
      • S(f);N_GUARD,P_SPINR(h)::S(C),XS(f)
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