MESON Chess Problem Database

Problem Display
PID: 176093 (4K3/8/1BRp2p1/P1bk1pQ1/1p3P2/1P1BR3/1P6/8 w - - 0 1)

Freund, W

Schach-Echo, 1937

4K3/8/1BRp2p1/P1bk1pQ1/1p3P2/1P1BR3/1P6/8

#2

10 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qg2#
  • Tries
    • 1.Be4+?
      • 1...Ke6
        • 2.Qe7#
        • 2.Qxg6#
      • 1...Kd4!
    • 1.Rxc5+?
      • 1...Kd4
        • 2.Rb5#
        • 2.Rce5#
        • 2.Rxf5#
      • 1...dxc5!
    • 1.Rxd6+?
      • 1...Bxd6
        • 2.Qg2#
      • 1...Kxd6!
  • Keys
    • 1.Re6!
      • 1...Kd4
        • 2.Rcxd6#
      • 1...Kxc6
        • 2.Qg2#
      • 1...Kxe6
        • 2.Bc4#
      • 1...Bxb6
        • 2.Rexd6#
      • 1...Bg1
        • 2.Rcxd6#
        • 2.Rexd6#
      • 1...Bf2
        • 2.Rcxd6#
        • 2.Rexd6#
      • 1...Be3
        • 2.Rcxd6#
        • 2.Rexd6#
      • 1...Bd4
        • 2.Rcxd6#
        • 2.Rexd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(b);::QAB(G)
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(c);N_SPINP(d),P-FLIGHT,P_SPINB(b)
    • Try
      • R(I);CHECK,XB(b)
      • Refutation
        • P(e);XR(I)
    • Try
      • R(I);CHECK,XP(e)
      • Vars
        • B(b);SBLOCK,XR(I)::QAB(G)
      • Refutation
        • K(c);N_SPINP(d),P-FLIGHT,XR(I)
  • Actual
    • R(D);
    • Vars
      • K(c);N_SPINP(d),P-FLIGHT,P_SPINB(b)::R(I),XP(e)
      • K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT,XR(I)::QAB(G)
      • K(c);N_SPINP(d),P_SPINP(e),S_FLIGHT,XR(D)::B(C)
      • B(b);N_GUARD,XB(H)::R1(D),XP(e)
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