MESON Chess Problem Database

Problem Display
PID: 160587 (5BK1/p2p4/2kPP3/P1NN2nR/P2nP3/Q7/b4b2/3R3B w - - 0 1)

Apro, Laszlo

Parallele 50, 1951

5BK1/p2p4/2kPP3/P1NN2nR/P2nP3/Q7/b4b2/3R3B

#2

13 + 7

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.exd5#
    • 1...Sc2
      • 2.Se7#
    • 1...Se2
      • 2.Se7#
    • 1...Sb3
      • 2.Se7#
    • 1...Sdf3
      • 2.Se7#
    • 1...Sb5
      • 2.Se7#
    • 1...Sdxe6
      • 2.Se7#
    • 1...Sgf3
      • 2.Sb4#
    • 1...Sh3
      • 2.Sb4#
    • 1...Sxe4
      • 2.Sb4#
    • 1...Sgxe6
      • 2.Sb4#
    • 1...Sf7
      • 2.Sb4#
    • 1...Sh7
      • 2.Sb4#
  • Tries
    • 1.Rxd4?
      • threat
        • 2.Se7#
      • 1...Bxd5
        • 2.exd5#
      • 1...Bxd4!
    • 1.Qc3?
      • threat
        • 2.Sb4#
      • 1...Bxd5
        • 2.exd5#
      • 1...Sc2
        • 2.Se7#
      • 1...Bc4!
  • Keys
    • 1.exd7!
      • threat
        • 2.d8S#
      • 1...Bxd5+
        • 2.exd5#
      • 1...Sde6
        • 2.Se7#
      • 1...Sge6
        • 2.Sb4#
      • 1...Sf7
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • B(a);OGATE,P_PINP(K),XS(H)::P(E),XB(a)
    • S(c);::S(H)
    • S(c);XP(K)::S(H)
    • S(d);::S(H)
    • S(d);XP(E)::S(H)
    • S(d);XP(K)::S(H)
  • Tries
    • Try
      • R(A);XS(c)
      • Threat
        • S(H)
      • Vars
        • B(a);OGATE,P_PINP(K),XS(H)::P(E),XB(a)
      • Refutation
        • B(b);XR(A)
    • Try
      • Q(C);
      • Threat
        • S(H)
      • Vars
        • B(a);OGATE,P_PINP(K),XS(H)::P(E),XB(a)
        • S(c);::S(H)
      • Refutation
        • B(a);
  • Actual
    • P(K);P_SPINS(H),XP(g)
    • Threat
      • P=S
    • Vars
      • B(a);CHECK,OGATE,XS(H)::P(E),XB(a)
      • S(c);N_PINS(H)::S(H)
      • S(d);N_PINS(H)::S(H)
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