MESON Chess Problem Database

Problem Display
PID: 184753 (3b4/Q2RB3/3P4/2R5/3k4/P4K2/8/8 w - - 0 1)

von Gottschall, Hermann

Reclam-Sammlung V, 1908

3b4/Q2RB3/3P4/2R5/3k4/P4K2/8/8

#2

7 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bc7
      • 2.dxc7#
    • 1...Bxe7
      • 2.dxe7#
  • Tries
    • 1.Qa4+?
      • 1...Kd3
        • 2.Qd1#
      • 1...Kxc5!
    • 1.Qa5?
      • threat
        • 2.Qc3#
      • 1...Kd3
        • 2.Qc3#
      • 1...Bxa5!
    • 1.Qb7?
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qd5#
      • 1...Kxc5!
    • 1.Qa8?
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qd5#
      • 1...Kxc5!
  • Keys
    • 1.Qc7!
      • 1...Kd3
        • 2.Rd5#
      • 1...Bxc7
        • 2.dxc7#
      • 1...Bxe7
        • 2.dxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::R(F)+P(D),XB(b)
    • B(b);OGATE,XB(G)::R(F)+P(D),XB(b)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • B(b);XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
  • Actual
    • Q(E);
    • Vars
      • K(a);P-FLIGHT::R(C)
      • B(b);OGATE,XQ(E)::R(F)+P(D),XB(b)
      • B(b);OGATE,XB(G)::R(F)+P(D),XB(b)
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