MESON Chess Problem Database

Problem Display
PID: 18241 (1n6/1qp3p1/2N3Q1/r1Bk1p2/7R/b7/5pK1/2Rr1B2 w - - 0 1)

Santiago, Joao Baptista

2nd Prize, Problem (Zagreb), 1954

1n6/1qp3p1/2N3Q1/r1Bk1p2/7R/b7/5pK1/2Rr1B2

#2

7 + 10

3105 FIDE Album (1945-1955) 1964
23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.Qxf5#
    • 1...Re1
      • 2.Rd4#
    • 1...Rxf1
      • 2.Rd4#
    • 1...Rd4
      • 2.Rxd4#
    • 1...Rxc5
      • 2.Rxd1#
    • 1...Bxc5
      • 2.Bc4#
    • 1...f4
      • 2.Rh5#
  • Keys
    • 1.Bd6!
      • threat
        • 2.Se7#
      • 1...Qxc6
        • 2.Rxd1#
      • 1...Bxd6
        • 2.Qf7#
      • 1...Sxc6
        • 2.Bc4#
      • 1...cxd6
        • 2.Qxf5#
      • 1...Re1
        • 2.Rd4#
      • 1...f4
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(g);SBLOCK,XS(F)::QAR2(G),XP(f)
    • R(a);N_GUARD::R1(D)
    • R(a);N_GUARD,XB(B)::R1(D)
    • R(a);N_GUARD::R1(D),XR(a)
    • R(d);SBLOCK,XB(E)::R(A),XR(a)
    • B(c);SBLOCK,XB(E)::B(B)
    • P(f);OGATEB::R(D)
  • Actual
    • B(E);
    • Threat
      • S(F)
    • Vars
      • Q(g);SBLOCK,XS(F)::R(A),XR(a)
      • B(c);SBLOCK,XB(E)::QAB(G)
      • S(j);SBLOCK,XS(F)::B(B)
      • P(h);SBLOCK,XB(E)::QAR2(G),XP(f)
      • R(a);N_GUARD::R1(D)
      • P(f);OGATEB::R(D)
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