MESON Chess Problem Database

Problem Display
PID: 254875 (1R5Q/8/5qB1/K1Np1n1r/1R6/B3p1p1/p3P1P1/k7 w - - 0 1)

Fuhrer, Viktor

Wiener Schachzeitung, 1937

1R5Q/8/5qB1/K1Np1n1r/1R6/B3p1p1/p3P1P1/k7

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Qxb2#
    • 1...Qc3
      • 2.Qxc3#
    • 1...Rh1
      • 2.Qxh1#
    • 1...Rg5
      • 2.Qh1#
    • 1...Sd4
      • 2.Bb2#
    • 1...Sh4
      • 2.Sb3#
    • 1...Sd6
      • 2.Sb3#
    • 1...Sh6
      • 2.Sb3#
    • 1...Se7
      • 2.Sb3#
    • 1...Sg7
      • 2.Sb3#
  • Tries
    • 1.Bb2+?
      • 1...Qxb2
        • 2.Qxb2#
      • 1...Kb1!
    • 1.Rc4?
      • threat
        • 2.Rc1#
      • 1...Qc3+
        • 2.Qxc3#
      • 1...Rh1
        • 2.Qxh1#
      • 1...dxc4!
    • 1.Qxf6+?
      • 1...Sd4
        • 2.Sb3#
        • 2.Bb2#
        • 2.Qxd4#
        • 2.Qf1#
      • 1...d4!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Rf1#
      • 1...Qc3+
        • 2.Qxc3#
      • 1...Rh1
        • 2.Qxh1#
      • 1...Sd4
        • 2.Bb2#
      • 1...Sg7
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(h);OGATE::QAB1(I),XQ(h)
    • Q(h);OGATE,P_PINR(D)::QAB(I),XQ(h)
    • R(g);OGATE::QAB1(I),XR(g)
    • R(g);OGATE::QAB1(I)
    • S(f);N_SPINQ(h),S_CUTQ(h)::B(C)
    • S(f);::S(F)
    • S(f);N_SPINQ(h)::S(F)
  • Tries
    • Try
      • B(C);CHECK,N_PINQ(h)
      • Vars
        • Q(h);OGATE,P_SPINQ(h),XB(C)::QAB1(I),XQ(h)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(f)
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • Q(h);CHECK,OGATE::QAB(I),XQ(h)
        • R(g);OGATE::QAB1(I),XR(g)
      • Refutation
        • P(e);XR(D)
    • Try
      • Q(I);CHECK,XQ(h)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • R(D);
    • Threat
      • R(D)
    • Vars
      • Q(h);CHECK,OGATE::QAB(I),XQ(h)
      • R(g);OGATE::QAB1(I),XR(g)
      • S(f);N_SPINQ(h),S_CUTQ(h)::B(C)
      • S(f);N_SPINQ(h)::S(F)
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Developed and maintained by Brian Stephenson.
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