MESON Chess Problem Database

Problem Display
PID: 120108 (3Q4/8/R1r5/4k3/2R5/3B4/8/4K3 w - - 0 1)

Mach, Julius Zdenek

Sachove listy, 1902

3Q4/8/R1r5/4k3/2R5/3B4/8/4K3

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qd6#
    • 1...Rc5
      • 2.Qg5#
      • 2.Qd4#
      • 2.Qd6#
    • 1...Rd6
      • 2.Qxd6#
    • 1...Re6
      • 2.Ra5#
      • 2.Qg5#
      • 2.Qd4#
    • 1...Rf6
      • 2.Qa5#
      • 2.Qd4#
    • 1...Rg6
      • 2.Qa5#
      • 2.Qd4#
    • 1...Rh6
      • 2.Qa5#
      • 2.Qg5#
      • 2.Qd4#
    • 1...Rc7
      • 2.Qg5#
      • 2.Qd4#
      • 2.Qd6#
    • 1...Rc8
      • 2.Qg5#
      • 2.Qd4#
      • 2.Qd6#
  • Tries
    • 1.Bh7?
      • threat
        • 2.Re4#
      • 1...Rxc4
        • 2.Qd6#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Rg6
        • 2.Qa5#
      • 1...Ke6!
    • 1.Rc5+?
      • 1...Ke6
        • 2.Bc4#
      • 1...Rxc5
        • 2.Qd6#
      • 1...Kf4!
    • 1.Qe7+?
      • 1...Re6
        • 2.Ra5#
        • 2.Qg5#
        • 2.Qxe6#
      • 1...Kd5!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Re4#
      • 1...Ke6
        • 2.Re4#
      • 1...Rxc4
        • 2.Qd6#
      • 1...Rxg6
        • 2.Qa5#
      • 1...Rd6
        • 2.Qxd6#

There are these versions: 175104

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,XR(C)::QAB1(E)
    • R(b);N_GUARD::QAB1(E),XR(b)
  • Tries
    • Try
      • B(B);
      • Threat
        • R1(C)
      • Vars
        • R(b);N_GUARD,XR(C)::QAB1(E)
        • R(b);N_GUARD::QAB1(E),XR(b)
        • R(b);N_GUARD::QAR(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINR(b)
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINR(b)::B(B)
        • R(b);XR(C)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Threat
      • R1(C)
    • Vars
      • K(a);P-FLIGHT,P_SPINR(b)::R(C)
      • R(b);N_GUARD,XR(C)::QAB1(E)
      • R(b);N_GUARD,XB(B)::QAR(E)
      • R(b);N_GUARD::QAB1(E),XR(b)
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