MESON Chess Problem Database

Problem Display
PID: 40885 (1Q2KR1r/1n1PP2P/1n1Bkp2/2p1P3/2PP1P2/4RrP1/B1N3N1/8 w - - 0 1)

Petrovic, Nenad

The Problemist, 1947

1Q2KR1r/1n1PP2P/1n1Bkp2/2p1P3/2PP1P2/4RrP1/B1N3N1/8

#2

16 + 7

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh7
      • 2.Rxf6#
    • 1...Sc8
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...cxd4
      • 2.Sxd4#
    • 1...fxe5
      • 2.Rxe5#
  • Keys
    • 1.g4!
      • 1...Rxf8+
        • 2.exf8S#
      • 1...Sxd6+
        • 2.Qxd6#
      • 1...Rxe3
        • 2.f5#
      • 1...Rxf4
        • 2.Sxf4#
      • 1...Rxh7
        • 2.Rxf6#
      • 1...Sxc4
        • 2.Bxc4#
      • 1...Sxd7
        • 2.d5#
      • 1...cxd4
        • 2.Sxd4#
      • 1...fxe5
        • 2.Rxe5#
      • 1...Rf1
        • 2.exf6#
      • 1...Rf2
        • 2.exf6#
      • 1...Rg3
        • 2.f5#
      • 1...Rh3
        • 2.f5#
      • 1...Rg8
        • 2.hxg8Q#
        • 2.hxg8B#
      • 1...Sa4
        • 2.d5#
      • 1...Sd5
        • 2.cxd5#
      • 1...Sa8
        • 2.d5#
      • 1...Sc8
        • 2.d5#
        • 2.dxc8Q#
        • 2.dxc8B#
      • 1...Sa5
        • 2.d8S#
      • 1...Sd8
        • 2.exd8S#
      • 1...f5
        • 2.gxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • R(g);N_PINR(P),XP(M)::R1(P),XP(e)
    • S(c);OGATE::PXS(c)=Q
    • P(b);XP(G)::S(B),XP(b)
    • P(e);OGATE,P_SPINP(e),XP(I)::R1(D),XP(e)
  • Actual
    • P(E);
    • Vars
      • R(g);CHECK,OGATE,XR(P)::PXR(g)=S
      • S(f);CHECK,OGATE,XB(J)::QAR1(N),XS(f)
      • R(a);N_GUARD,XR(D)::P(H)
      • R(a);XP(H)::S(C),XR(a)
      • R(g);N_PINR(P),XP(M)::R1(P),XP(e)
      • S(c);OGATE,P_SPINS(c),XP(F)::B(A),XS(c)
      • S(c);N_GUARD,XP(K)::P(G)
      • P(b);XP(G)::S(B),XP(b)
      • P(e);OGATE,P_SPINP(e),XP(I)::R1(D),XP(e)
      • R(a);N_GUARD::R(D)+P(I),XP(e)
      • R(a);N_GUARD::P(H)
      • R(g);OGATE::PXR(g)=Q
      • S(c);N_GUARD::P(G)
      • S(c);OGATE::P(F),XS(c)
      • S(f);N_GUARD::P=S
      • S(f);OGATE::PXS(f)=S
      • P(e);OGATE::P(E),XP(e)
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