MESON Chess Problem Database

Problem Display
PID: 24886 (5R2/6kn/2p4R/2Q5/7K/8/8/8 w - - 0 1)

Mach, Julius Zdenek

Nove parizske mody, 1889

5R2/6kn/2p4R/2Q5/7K/8/8/8

#2

4 + 3

3310 2345 Chess Problems 1997
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rxh7+?
      • 1...Kg6
        • 2.Qc2#
        • 2.Qf5#
        • 2.Qh5#
      • 1...Kxh7!
    • 1.Ra8?
      • 1...Kf7
        • 2.Qa7#
      • 1...Sf8
        • 2.Qxf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qf8#
      • 1...Kxh6!
    • 1.Rb8?
      • 1...Kf7
        • 2.Qa7#
      • 1...Sf8
        • 2.Qxf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qf8#
      • 1...Kxh6!
    • 1.Rc8?
      • 1...Kf7
        • 2.Qa7#
      • 1...Sf8
        • 2.Qxf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qf8#
      • 1...Kxh6!
    • 1.Rd8?
      • 1...Kf7
        • 2.Qa7#
      • 1...Sf8
        • 2.Qxf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qf8#
      • 1...Kxh6!
    • 1.Re8?
      • 1...Kf7
        • 2.Qe7#
      • 1...Sf8
        • 2.Qxf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qf8#
      • 1...Kxh6!
    • 1.Qd6?
      • threat
        • 2.Rg6#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Sg5
        • 2.Qf6#
      • 1...Sxf8!
  • Keys
    • 1.Rh8!
      • 1...Kxh6
        • 2.Qg5#
      • 1...Kf7
        • 2.Qa7#
      • 1...Kxh8
        • 2.Qf8#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf6
        • 2.Qe7#
        • 2.Qf8#
      • 1...Sf8
        • 2.Qe7#
        • 2.Qxf8#

This anticipates 179997(1949), 208204(1992)

This is a version of 30528

There are these versions: 103115

FEATURES

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