MESON Chess Problem Database

Problem Display
PID: 246730 (3q4/5p1B/4p2B/p2pNrnp/3Pk3/4P1np/4P2R/3NK3 w - - 0 1)

Zilahi, Zoltan

El Ajedrez Espanol, 1942

3q4/5p1B/4p2B/p2pNrnp/3Pk3/4P1np/4P2R/3NK3

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3+
      • 2.exf3#
    • 1...Sxh7
      • 2.Sc3#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Sf2#
        • 2.Sc3#
      • 1...Sf3+
        • 2.exf3#
      • 1...Sxe2
        • 2.Sf2#
      • 1...Sxh7
        • 2.Sc3#
      • 1...Qc7
        • 2.Sf2#
      • 1...Qc8
        • 2.Sf2#
      • 1...Sh1
        • 2.Sc3#
      • 1...Sf1+!
    • 1.Bxg5?
      • threat
        • 2.Sf2#
        • 2.Sc3#
      • 1...Sxe2
        • 2.Sf2#
      • 1...Qc7
        • 2.Sf2#
      • 1...Qc8
        • 2.Sf2#
      • 1...Sh1
        • 2.Sc3#
      • 1...Qxg5!
    • 1.Rf2?
      • threat
        • 2.Rf4#
      • 1...Sf3+
        • 2.exf3#
      • 1...Sxh7
        • 2.Sc3#
      • 1...Sxe2!
  • Keys
    • 1.Rxh3!
      • threat
        • 2.Rh4#
      • 1...Sf3+
        • 2.exf3#
      • 1...Sxe2
        • 2.Sf2#
      • 1...Sxh3
        • 2.Sc3#
      • 1...Sxh7
        • 2.Sc3#
      • 1...h4
        • 2.Rxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(g);CHECK,OGATE::P(C),XS(g)
    • S(g);N_SPINR(f),XB(I)::S(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(g);CHECK,OGATE::P(C),XS(g)
        • S(a);XP(C)::S(A)
        • S(g);N_SPINR(f),XB(I)::S(A)
        • Q(k);::S(A)
        • S(a);::S(A)
      • Refutation
        • S(a);CHECK
    • Try
      • B(H);XS(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(C)::S(A)
        • Q(k);::S(A)
        • S(a);::S(A)
      • Refutation
        • Q(k);XB(H)
    • Try
      • R(D);
      • Threat
        • R1(D)
      • Vars
        • S(g);CHECK,OGATE::P(C),XS(g)
        • S(g);N_SPINR(f),XB(I)::S(A)
      • Refutation
        • S(a);XP(C)
  • Actual
    • R(D);XP(b)
    • Threat
      • R(D)
    • Vars
      • S(g);CHECK,OGATE::P(C),XS(g)
      • S(a);XP(C)::S(A)
      • S(g);XR(D)::S(A)
      • S(g);N_SPINR(f),XB(I)::S(A)
      • P(h);::R(D),XP(h)
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