MESON Chess Problem Database

Problem Display
PID: 184729 (8/8/2P5/1PBk2K1/3P2B1/3r2p1/2QP2P1/8 w - - 0 1)

Doubrava, Jiri

Narodni listy, 1908

8/8/2P5/1PBk2K1/3P2B1/3r2p1/2QP2P1/8

#2

9 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bf3#
  • Tries
    • 1.Bf3+?
      • 1...Ke6
        • 2.Qc4#
      • 1...Rxf3!
    • 1.Be6+?
      • 1...Kxe6
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qb3+?
      • 1...Ke4
        • 2.Bf5#
        • 2.Qe6#
      • 1...Rxb3!
    • 1.Qa2+?
      • 1...Ke4
        • 2.Bf5#
        • 2.Qe6#
      • 1...Rb3!
    • 1.Qc4+?
      • 1...Ke4
        • 2.Bf5#
        • 2.Qe6#
      • 1...Kxc4!
  • Keys
    • 1.Be2!
      • 1...Ke4
        • 2.Bf3#
      • 1...Ke6
        • 2.Qc4#
      • 1...Rxd2
        • 2.Bc4#
        • 2.Qf5#
      • 1...Rxd4
        • 2.Qf5#
      • 1...Ra3
        • 2.Bc4#
        • 2.Qf5#
      • 1...Rb3
        • 2.Bc4#
        • 2.Qf5#
      • 1...Rc3
        • 2.Qf5#
      • 1...Re3
        • 2.Bc4#
      • 1...Rf3
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINR(a),S_FLIGHT::B(E)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(A)
      • Refutation
        • R(a);XB(E)
    • Try
      • B(E);CHECK
      • Vars
        • K(c);S_FLIGHT,XB(E)::QAB(A)
      • Refutation
        • K(c);P_SPINR(a),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • R(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(A)
  • Actual
    • B(E);
    • Vars
      • K(c);P_SPINR(a),S_FLIGHT::B(E)
      • K(c);S_FLIGHT::QAB(A)
      • R(a);OGATE,XP(D)::QAR2(A)
      • R(a);OGATE::QAR2(A)
      • R(a);OGATE::B(E)
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