MESON Chess Problem Database

Problem Display
PID: 147931 (6RQ/2p5/q2pB3/rn1N3K/2P1kPN1/3p2p1/3Pn1P1/3b1Rb1 w - - 0 1)

Zilahi, Zoltan

Western Morning News, 1938

(First published on Sat Oct 22 1938)

6RQ/2p5/q2pB3/rn1N3K/2P1kPN1/3p2p1/3Pn1P1/3b1Rb1

#2

11 + 11

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qh7#
    • 1...Sed4
      • 2.Sf6#
    • 1...Sxf4+
      • 2.Rxf4#
    • 1...Sbd4
      • 2.Sf6#
  • Tries
    • 1.Kg5?
      • threat
        • 2.Bf5#
      • 1...Sed4
        • 2.Sgf6#
        • 2.Sdf6#
      • 1...Sbd4
        • 2.Sf6#
      • 1...Qc8!
    • 1.Kg6?
      • threat
        • 2.Bf5#
      • 1...Sxf4+
        • 2.Rxf4#
      • 1...Sed4
        • 2.Sgf6#
        • 2.Sdf6#
      • 1...Sbd4
        • 2.Sgf6#
        • 2.Sdf6#
      • 1...Qc8!
    • 1.Rg5?
      • threat
        • 2.Bf5#
      • 1...Sxf4+
        • 2.Rxf4#
      • 1...Sed4
        • 2.Sf6#
      • 1...Sbd4
        • 2.Sgf6#
        • 2.Sdf6#
      • 1...Qc8!
    • 1.Rf8?
      • threat
        • 2.Bf5#
      • 1...Sxf4+
        • 2.R1xf4#
        • 2.R8xf4#
      • 1...Sed4
        • 2.Sf6#
      • 1...Sbd4
        • 2.Sf6#
      • 1...Qc8!
  • Keys
    • 1.Re8!
      • threat
        • 2.Bd7#
        • 2.Bc8#
      • 1...Sxf4+
        • 2.Rxf4#
      • 1...Qc8
        • 2.Bxc8#
      • 1...Qc6
        • 2.Bd7#
      • 1...Qa8
        • 2.Bc8#
      • 1...Bd4
        • 2.Qh7#
      • 1...Sed4
        • 2.Sf6#
      • 1...Sbd4
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::QAB(K)
    • S(c);P_PINS(F),SBLOCK::S(G)
    • S(c);CHECK,OGATE,P_PINS(F),XP(E)::R1(A),XS(c)
    • S(h);P_PINS(G),SBLOCK::S(F)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • B(I)
      • Vars
        • S(h);P_PINS(G),SBLOCK::S(F)
      • Refutation
        • Q(i);
    • Try
      • K(H);S_FLIGHT
      • Threat
        • B(I)
      • Vars
        • S(c);CHECK,OGATE,XP(E)::R1(A),XS(c)
      • Refutation
        • Q(i);
    • Try
      • R(J);
      • Threat
        • B(I)
      • Vars
        • S(c);CHECK,OGATE,P_PINS(F),XP(E)::R1(A),XS(c)
        • S(c);P_PINS(F),SBLOCK::S(G)
      • Refutation
        • Q(i);
    • Try
      • R(J);
      • Threat
        • B(I)
      • Vars
        • S(c);P_PINS(F),SBLOCK::S(G)
        • S(h);P_PINS(G),SBLOCK::S(F)
      • Refutation
        • Q(i);
  • Actual
    • R(J);
    • Threat
      • DUALS(2)
    • Vars
      • S(c);CHECK,OGATE,P_PINS(F),XP(E)::R1(A),XS(c)
      • Q(i);::R(J)+B(I),XQ(i)
      • Q(i);::R(J)+B(I)
      • B(b);SBLOCK::QAB(K)
      • S(c);P_PINS(F),SBLOCK::S(G)
      • S(h);P_PINS(G),SBLOCK::S(F)
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