MESON Chess Problem Database

Problem Display
PID: 179030 (1B6/8/2K4n/2pR2p1/2r1k1r1/4pN2/bNP1q1P1/1B2R2Q w - - 0 1)

Feldmann, Tibor (aka Florian, Tibor)

Szoghy, Jozsef

Magasinet, 1938

1B6/8/2K4n/2pR2p1/2r1k1r1/4pN2/bNP1q1P1/1B2R2Q

#2

10 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Sd2#
    • 1...Qd3
      • 2.cxd3#
    • 1...Qxf3
      • 2.gxf3#
    • 1...Qxc2
      • 2.Sd2#
    • 1...Qd2
      • 2.Sxd2#
    • 1...Qxg2
      • 2.Sd2#
    • 1...Rxg2
      • 2.Sxg5#
    • 1...Rf4
      • 2.Sxg5#
      • 2.Re5#
    • 1...Rh4
      • 2.Sxg5#
    • 1...Sf7
      • 2.Qh7#
    • 1...Sg8
      • 2.Qh7#
  • Tries
    • 1.Sd2+?
      • 1...exd2
        • 2.Rxe2#
      • 1...Qxd2!
    • 1.Bg3?
      • threat
        • 2.Re5#
      • 1...Qxf3
        • 2.gxf3#
      • 1...Qxg2
        • 2.Sd2#
      • 1...Sf7
        • 2.Qh7#
      • 1...Rxg3!
    • 1.c3+?
      • 1...Qd3
        • 2.Sd2#
        • 2.Bxd3#
      • 1...Qc2
        • 2.Sd2#
        • 2.Bxc2#
      • 1...Bxb1!
    • 1.g3?
      • threat
        • 2.Sd2#
        • 2.Sxg5#
        • 2.Re5#
      • 1...Rxg3
        • 2.Sd2#
        • 2.Sxg5#
      • 1...Qg2
        • 2.Sd2#
      • 1...Qd2
        • 2.Sxd2#
        • 2.Sxg5#
        • 2.Re5#
      • 1...Sf7
        • 2.Sd2#
        • 2.Sxg5#
      • 1...Qxf3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Re5#
      • 1...Qxd3
        • 2.cxd3#
      • 1...Qxf3
        • 2.gxf3#
      • 1...Qxc2
        • 2.Sf2#
      • 1...Qxg2
        • 2.Sd2#
      • 1...Rxc2
        • 2.Sxc5#
      • 1...Rxg2
        • 2.Sxg5#
      • 1...Sf7
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD,P_SPINP(c)::S(G)
    • Q(b);OGATE,P_SPINP(c)::P(E),XQ(b)
    • Q(b);OGATE,P_SPINP(c),XS(G)::P(F),XQ(b)
    • Q(b);N_GUARD,P_SPINP(c),P_SPINQ(b),XP(E)::S(G)
    • Q(b);N_GUARD,P_SPINP(c)::S(G),XQ(b)
    • Q(b);N_GUARD,P_SPINP(c),XP(F)::S(G)
    • R(f);N_GUARD,XP(F)::S(G),XP(h)
    • R(f);N_GUARD::S(G),XP(h)
    • S(i);OGATE::QAB(C)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • P(c);P_SPINQ(b),XS(G)::R(B),XQ(b)
      • Refutation
        • Q(b);P_SPINP(c),XS(G)
    • Try
      • B(J);
      • Threat
        • R1(H)
      • Vars
        • Q(b);OGATE,P_SPINP(c),XS(G)::P(F),XQ(b)
        • Q(b);N_GUARD,P_SPINP(c),XP(F)::S(G)
        • S(i);OGATE::QAB(C)
      • Refutation
        • R(f);XB(J)
    • Try
      • P(E);CHECK
      • Refutation
        • B(a);XB(A)
    • Try
      • P(F);
      • Threat
        • DUALS(3)
      • Vars
        • Q(b);P_SPINP(c)::S(G)
      • Refutation
        • Q(b);P_SPINP(c),P_SPINQ(b),XS(G)
  • Actual
    • S(D);
    • Threat
      • R1(H)
    • Vars
      • Q(b);OGATE,P_SPINP(c),XS(D)::P(E),XQ(b)
      • Q(b);OGATE,P_SPINP(c),XS(G)::P(F),XQ(b)
      • Q(b);N_GUARD,P_SPINP(c),XP(E)::S(D)
      • Q(b);N_GUARD,P_SPINP(c),XP(F)::S(G)
      • R(d);N_GUARD,XP(E)::S(D),XP(g)
      • R(f);N_GUARD,XP(F)::S(G),XP(h)
      • S(i);OGATE::QAB(C)
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