MESON Chess Problem Database

Problem Display
PID: 103115 (2R5/nk6/R4p2/5Q2/2K5/8/8/8 w - - 0 1)

Mach, Julius Zdenek

Nove parizske mody, 1899

2R5/nk6/R4p2/5Q2/2K5/8/8/8

#2

4 + 3

6490 yacpdb 2009
3713 Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rxa7+?
      • 1...Kb6
        • 2.Qf2#
        • 2.Qa5#
        • 2.Qc5#
      • 1...Kxa7!
    • 1.Rd8?
      • 1...Kc7
        • 2.Qd7#
      • 1...Sc8
        • 2.Qxc8#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc6
        • 2.Qc8#
      • 1...Kxa6!
    • 1.Re8?
      • 1...Kc7
        • 2.Qh7#
      • 1...Sc8
        • 2.Qxc8#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc6
        • 2.Qc8#
      • 1...Kxa6!
    • 1.Rf8?
      • 1...Kc7
        • 2.Qh7#
      • 1...Sc8
        • 2.Qxc8#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc6
        • 2.Qc8#
      • 1...Kxa6!
    • 1.Rg8?
      • 1...Kc7
        • 2.Qh7#
      • 1...Sc8
        • 2.Qxc8#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc6
        • 2.Qc8#
      • 1...Kxa6!
    • 1.Rh8?
      • 1...Kc7
        • 2.Qh7#
      • 1...Sc8
        • 2.Qxc8#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc6
        • 2.Qc8#
      • 1...Kxa6!
    • 1.Qe6?
      • threat
        • 2.Rb6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb5
        • 2.Qc6#
      • 1...Sxc8!
  • Keys
    • 1.Ra8!
      • 1...Kxa6
        • 2.Qb5#
      • 1...Kc7
        • 2.Qh7#
      • 1...Kxa8
        • 2.Qc8#
      • 1...Sb5
        • 2.Qc8#
      • 1...Sc6
        • 2.Qd7#
        • 2.Qc8#
      • 1...Sc8
        • 2.Qd7#
        • 2.Qxc8#

This anticipates 179997(1949), 208204(1992)

This is a version of 24886

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XS(b)
      • Refutation
        • K(c);P-FLIGHT,XR(C)
    • Try
      • R(D);
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • R(D);
      • Vars
        • K(c);P-FLIGHT::QAR(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • R(D);
      • Vars
        • K(c);P-FLIGHT::QAR(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • R(D);
      • Vars
        • K(c);P-FLIGHT::QAR(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • R(D);
      • Vars
        • K(c);P-FLIGHT::QAR(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • R1(C)
      • Vars
        • S(b);N_GUARD::QAB1(B),XS(b)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • S(b);XR(D)
  • Actual
    • R(D);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XR(C)::QAB1(B)
      • K(c);P-FLIGHT::QAR(B)
      • K(c);P_SPINS(b),S_FLIGHT,XR(D)::QAR2(B)
      • S(b);N_GUARD::QAB1(B)
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