MESON Chess Problem Database

Problem Display
PID: 37986 (4K3/p1Pn1BBb/3pNP1p/1Nr2k2/q1n3R1/2Q4P/7b/8 w - - 0 1)

Buchwald, Julius

1st Prize, Enroque!!, 1946

4K3/p1Pn1BBb/3pNP1p/1Nr2k2/q1n3R1/2Q4P/7b/8

#2

10 + 10

14773 The Best American Chess Problems of 1946 1948
5064 100 Years of the American Two-move Chess Problem 1962
3105 FIDE Album (1945-1955) 1964
5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sd4#
    • 1...Bg1
      • 2.Rf4#
    • 1...Bf4
      • 2.Rxf4#
    • 1...Be5
      • 2.Qd3#
    • 1...Sce5
      • 2.Sxd6#
    • 1...Sde5
      • 2.Sd4#
    • 1...Sxf6+
      • 2.Qxf6#
  • Tries
    • 1.Qf3+?
      • 1...Bf4
        • 2.Qxf4#
      • 1...Ke5!
    • 1.c8S?
      • threat
        • 2.Se7#
      • 1...Sxf6+
        • 2.Qxf6#
      • 1...Bf4
        • 2.Rxf4#
      • 1...Rxc8+!
  • Keys
    • 1.Bh8!
      • threat
        • 2.Sg7#
      • 1...Sxf6+
        • 2.Qxf6#
      • 1...Bf4
        • 2.Rxf4#
      • 1...Re5
        • 2.Sd4#
      • 1...Be5
        • 2.Qd3#
      • 1...Sce5
        • 2.Sxd6#
      • 1...Sde5
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(d);P_PINS(E),SBLOCK::S(D)
    • B(a);N_GUARD::R1(C)
    • B(a);N_GUARD::R1(C),XB(a)
    • B(a);SBLOCK::QAB(A)
    • S(c);N_GUARD,S_CUTB(a)::S(D),XP(f)
    • S(i);P_PINS(D),SBLOCK::S(E)
    • S(i);CHECK,OGATE,P_PINS(D),XP(F)::QAR1(A),XS(i)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(A),XB(a)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • P(G);
      • Threat
        • S(G)
      • Vars
        • S(i);CHECK,OGATE,P_PINS(D),XP(F)::QAR1(A),XS(i)
        • B(a);N_GUARD::R1(C),XB(a)
      • Refutation
        • R(d);CHECK,XS(G)
  • Actual
    • B(I);
    • Threat
      • S(E)
    • Vars
      • S(i);CHECK,OGATE,P_PINS(D),XP(F)::QAR1(A),XS(i)
      • B(a);N_GUARD::R1(C),XB(a)
      • R(d);P_PINS(E),SBLOCK::S(D)
      • B(a);SBLOCK::QAB(A)
      • S(c);N_GUARD,S_CUTB(a)::S(D),XP(f)
      • S(i);P_PINS(D),SBLOCK::S(E)
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