MESON Chess Problem Database

Problem Display
PID: 74087 (4b2K/2Nr1p2/3PpP2/2P1N2R/3pk3/3p1pR1/1n1B1P1n/1Q5r w - - 0 1)

Buchwald, Julius

1st Prize, Die Schwalbe 090. TT, 1949

4b2K/2Nr1p2/3PpP2/2P1N2R/3pk3/3p1pR1/1n1B1P1n/1Q5r

#2

11 + 11

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qxe1#
    • 1...Sd1
      • 2.Qxd3#
      • 2.Qb7#
    • 1...Sa4
      • 2.Qxd3#
      • 2.Qb7#
    • 1...Sc4
      • 2.Qxd3#
      • 2.Qb7#
    • 1...Sf1
      • 2.Rg4#
    • 1...Sg4
      • 2.Rxg4#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Re5#
      • 1...Sxg4
        • 2.Rxg4#
      • 1...Sc4
        • 2.Qb7#
      • 1...e5
        • 2.Rxe5#
      • 1...Sf1!
    • 1.Sc6?
      • threat
        • 2.Re5#
      • 1...Sf1
        • 2.Rg4#
      • 1...Sg4
        • 2.Rxg4#
      • 1...e5
        • 2.Rxe5#
      • 1...Sc4!
    • 1.Sg6?
      • threat
        • 2.Re5#
      • 1...Sc4
        • 2.Qb7#
      • 1...Sf1
        • 2.Rg4#
      • 1...Sg4
        • 2.Rxg4#
      • 1...e5
        • 2.Rxe5#
      • 1...fxg6!
    • 1.Sxd7?
      • threat
        • 2.Re5#
      • 1...Sc4
        • 2.Qb7#
      • 1...Sf1
        • 2.Rg4#
      • 1...Sg4
        • 2.Rxg4#
      • 1...e5
        • 2.Rxe5#
      • 1...Bxd7!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Re5#
      • 1...Sxc4
        • 2.Qb7#
      • 1...Sf1
        • 2.Rg4#
      • 1...Sg4
        • 2.Rxg4#
      • 1...e5
        • 2.Rxe5#

This is a version of 90640

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::QAR(A),XR(a)
    • S(c);N_GUARD,P_PINR(G)::R(D)
    • S(c);N_GUARD,P_PINR(G)::R(D),XS(c)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(G)
      • Vars
        • S(c);OGATE,P_PINR(G),XS(F)::R(D),XS(c)
        • S(b);OGATE::QAB(A)
        • P(h);::R1(G),XP(h)
      • Refutation
        • S(c);P_PINR(G)
    • Try
      • S(F);
      • Threat
        • R1(G)
      • Vars
        • S(c);N_GUARD,P_PINR(G)::R(D)
        • S(c);N_GUARD,P_PINR(G)::R(D),XS(c)
        • P(h);::R1(G),XP(h)
      • Refutation
        • S(b);
    • Try
      • S(F);
      • Threat
        • R1(G)
      • Vars
        • S(b);OGATE::QAB(A)
        • S(c);N_GUARD,P_PINR(G)::R(D)
        • S(c);N_GUARD,P_PINR(G)::R(D),XS(c)
        • P(h);::R1(G),XP(h)
      • Refutation
        • P(j);XS(F)
    • Try
      • S(F);XR(i)
      • Threat
        • R1(G)
      • Vars
        • S(b);OGATE::QAB(A)
        • S(c);N_GUARD,P_PINR(G)::R(D)
        • S(c);N_GUARD,P_PINR(G)::R(D),XS(c)
        • P(h);::R1(G),XP(h)
      • Refutation
        • B(k);XS(F)
  • Actual
    • S(F);
    • Threat
      • R1(G)
    • Vars
      • S(b);OGATE,XS(F)::QAB(A)
      • S(c);N_GUARD,P_PINR(G)::R(D)
      • S(c);N_GUARD,P_PINR(G)::R(D),XS(c)
      • P(h);::R1(G),XP(h)
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