MESON Chess Problem Database

Problem Display
PID: 226851 (K5B1/7Q/2Rpr3/2nk4/P3R1P1/1p6/1P6/8 w - - 0 1)

Kastner, Bernhard

Deutsche Schachzeitung, 1873

K5B1/7Q/2Rpr3/2nk4/P3R1P1/1p6/1P6/8

#2

8 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rb4?
      • 1...Ke5
        • 2.Qf5#
      • 1...Sxa4
        • 2.Qe4#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sa6
        • 2.Qe4#
      • 1...Sb7
        • 2.Qe4#
      • 1...Sd7
        • 2.Qe4#
      • 1...Kxc6!
    • 1.Rf4?
      • 1...Ke5
        • 2.Qf5#
      • 1...Sxa4
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sd3
        • 2.Qe4#
      • 1...Sa6
        • 2.Qe4#
      • 1...Sb7
        • 2.Qe4#
      • 1...Sd7
        • 2.Qe4#
      • 1...Kxc6!
    • 1.Rc7?
      • threat
        • 2.Qf5#
      • 1...Sd3
        • 2.Bxe6#
      • 1...Sd7
        • 2.Bxe6#
      • 1...Sxe4!
    • 1.Rc8?
      • threat
        • 2.Qf5#
      • 1...Sd3
        • 2.Bxe6#
        • 2.Qb7#
      • 1...Sd7
        • 2.Bxe6#
      • 1...Sxe4!
  • Keys
    • 1.Rc4!
      • 1...Kxc4
        • 2.Qe4#
      • 1...Ke5
        • 2.Qf5#
      • 1...Kxc6
        • 2.Qb7#
      • 1...Sxa4
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qh5#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
        • 2.Qf5#
      • 1...Sa6
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qh5#
      • 1...Sb7
        • 2.Qe4#
        • 2.Qf5#
        • 2.Qh5#
      • 1...Sd7
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • K(c);N_SPINR(e),P-FLIGHT::QAR1(F)
        • S(b);N_GUARD,XP(B)::QAB1(F)
        • S(b);N_GUARD::QAB1(F)
        • S(b);N_GUARD::QAB1(F),XS(b)
      • Refutation
        • K(c);N_SPINR(e),S_FLIGHT,XR(E)
    • Try
      • R(C);
      • Vars
        • K(c);N_SPINR(e),P-FLIGHT::QAR1(F)
        • S(b);N_GUARD,XP(B)::QAB1(F)
        • S(b);N_GUARD::QAB1(F),XS(b)
        • S(b);N_GUARD::QAB1(F)
      • Refutation
        • K(c);N_SPINR(e),S_FLIGHT,XR(E)
    • Try
      • R(E);
      • Threat
        • QAR2(F)
      • Vars
        • S(b);N_GUARD::B(H),XR(e)
      • Refutation
        • S(b);XR(C)
    • Try
      • R(E);
      • Threat
        • QAR2(F)
      • Vars
        • S(b);N_GUARD::B(H),XR(e)
      • Refutation
        • S(b);XR(C)
  • Actual
    • R(C);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XR(C)::QAR2(F)
      • K(c);N_SPINR(e),P-FLIGHT::QAR1(F)
      • K(c);N_SPINR(e),OGATEB,P_SPINS(b),S_FLIGHT,XR(E)::QAB1(F)
      • S(b);N_GUARD::QAB1(F)
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