MESON Chess Problem Database

Problem Display
PID: 122055 (n4K2/Q5P1/1pBnp3/1p5R/2Pk1N2/2R4b/1P3r1r/6B1 w - - 0 1)

Goldschmidt, Josef

Seilberger, Johann Joseph Petrus Adrianus

Haproblemai, 1946

n4K2/Q5P1/1pBnp3/1p5R/2Pk1N2/2R4b/1P3r1r/6B1

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Bxf2#
    • 1...Bg2
      • 2.Bxf2#
    • 1...Sxc4
      • 2.Rd3#
    • 1...Sf7
      • 2.Se2#
    • 1...Sc7
      • 2.Qxb6#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qxd6#
      • 1...Sxc4
        • 2.Rd3#
      • 1...Sf5
        • 2.Sxe6#
      • 1...Bg2
        • 2.Bxf2#
      • 1...Se4
        • 2.Qe5#
      • 1...Sb7
        • 2.Qe5#
      • 1...Sf7
        • 2.Se2#
      • 1...Sc8
        • 2.Qe5#
      • 1...Se8
        • 2.Qe5#
      • 1...Sxc7!
    • 1.Qd7?
      • threat
        • 2.Qxd6#
      • 1...Bg2
        • 2.Bxf2#
      • 1...Sc7!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qxd6#
      • 1...Sxc4
        • 2.Rd3#
      • 1...Sf5
        • 2.Sxe6#
      • 1...Bg2
        • 2.Bxf2#
      • 1...Se4
        • 2.Qe5#
      • 1...Sb7
        • 2.Qe5#
      • 1...Sf7
        • 2.Se2#
      • 1...Sc8
        • 2.Qe5#
      • 1...Se8
        • 2.Qe5#
      • 1...Sc7
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD::B(A),XR(a)
    • B(c);S_CUTR(b)::B(A),XR(a)
    • S(g);SBLOCK,XP(D)::R1(C)
    • S(g);N_PINS(E)::S(E)
    • S(i);N_GUARD::QAB(H),XP(f)
  • Tries
    • Try
      • Q(H);N_PINP(f)
      • Threat
        • QAR2(H),XS(g)
      • Vars
        • S(g);SBLOCK,XP(D)::R1(C)
        • S(g);N_PINS(E)::S(E),XP(h)
        • B(c);S_CUTR(b)::B(A),XR(a)
        • S(g);OGATE::QAB1(H)
        • S(g);N_PINS(E)::S(E)
      • Refutation
        • S(i);XQ(H)
    • Try
      • Q(H);N_PINP(f),P_PINS(g)
      • Threat
        • QAR2(H),XS(g)
      • Vars
        • B(c);S_CUTR(b)::B(A),XR(a)
      • Refutation
        • S(i);
  • Actual
    • Q(H);N_PINP(f)
    • Threat
      • QAR2(H),XS(g)
    • Vars
      • S(g);SBLOCK,XP(D)::R1(C)
      • S(g);N_PINS(E)::S(E),XP(h)
      • B(c);S_CUTR(b)::B(A),XR(a)
      • S(g);OGATE::QAB1(H)
      • S(g);N_PINS(E)::S(E)
      • S(i);N_GUARD::QAB(H),XP(f)
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