MESON Chess Problem Database

Problem Display
PID: 255113 (8/5r2/8/7b/2Bp4/R7/6Q1/2K1kn1n w - - 0 1)

Figura, Josef

Wiener Schachzeitung, 1934

8/5r2/8/7b/2Bp4/R7/6Q1/2K1kn1n

#2

4 + 6

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Qe2#
    • 1...Ra7
      • 2.Qxf1#
    • 1...Rb7
      • 2.Qxf1#
    • 1...Rc7
      • 2.Qxf1#
    • 1...Rd7
      • 2.Qxf1#
    • 1...Re7
      • 2.Qxf1#
    • 1...Rg7
      • 2.Qxf1#
    • 1...Rh7
      • 2.Qxf1#
    • 1...Be2
      • 2.Qxe2#
    • 1...Bf3
      • 2.Qxf1#
    • 1...Bg6
      • 2.Qe2#
    • 1...Sd2
      • 2.Qxd2#
    • 1...Sh2
      • 2.Qd2#
    • 1...Se3
      • 2.Qd2#
    • 1...Sfg3
      • 2.Qd2#
    • 1...Sf2
      • 2.Qxf1#
  • Tries
    • 1.Re3+?
      • 1...Be2
        • 2.Rxe2#
        • 2.Qxe2#
      • 1...Sxe3
        • 2.Qd2#
      • 1...dxe3!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Qxf1#
        • 2.Qe2#
      • 1...Rxf3
        • 2.Qe2#
      • 1...Bxf3
        • 2.Qxf1#
      • 1...Re7
        • 2.Rxf1#
        • 2.Qxf1#
      • 1...Sd2
        • 2.Qxd2#
        • 2.Qe2#
      • 1...Sh2
        • 2.Qd2#
        • 2.Qe2#
      • 1...Se3
        • 2.Qd2#
        • 2.Qe2#
      • 1...Sfg3
        • 2.Qd2#
      • 1...Sf2
        • 2.Qxf1#
        • 2.Qxf2#
      • 1...Shg3
        • 2.Qf2#
      • 1...d3
        • 2.Qxf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • R(f);S_CUTB(e)::QAR1(B)
    • R(f);N_GUARD::QAR1(B),XS(b)
    • R(f);N_GUARD,P_PINB(D)::QAR1(B),XS(b)
    • B(e);N_GUARD::QAR1(B),XB(e)
    • B(e);S_CUTR(f)::QAR1(B),XS(b)
    • B(e);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD::QAB1(B)
    • S(c);S_CUTR(f)::QAR1(B),XS(b)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • S(b);XR(C)::QAB1(B)
      • Refutation
        • P(d);XR(C)
  • Actual
    • R(C);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);XR(C)::QAR1(B)
      • B(e);XR(C)::QAR1(B),XS(b)
      • S(b);N_GUARD::QAB1(B)
      • S(c);N_GUARD::QAB1(B)
      • P(d);::QAR1(B),XS(b)
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