MESON Chess Problem Database

Problem Display
PID: 170162 (6bR/1Q6/8/p1k2N2/r3r1pB/1pP5/1n1n1NK1/R7 w - - 0 1)

Uberwasser, Adrian

Tages-Anzeiger, 1983

(First published on Sat Oct 8 1983)

6bR/1Q6/8/p1k2N2/r3r1pB/1pP5/1n1n1NK1/R7

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qc6#
    • 1...Rac4
      • 2.Rxa5#
    • 1...Rec4
      • 2.Be7#
    • 1...Bc4
      • 2.Rc8#
    • 1...Bf7
      • 2.Rc8#
    • 1...Bh7
      • 2.Rc8#
    • 1...Sbc4
      • 2.Sd3#
    • 1...Sdc4
      • 2.Sxe4#
  • Tries
    • 1.Be7+?
      • 1...Kc4
        • 2.Qc6#
      • 1...Rxe7!
  • Keys
    • 1.c4!
      • threat
        • 2.Qb5#
      • 1...Kxc4
        • 2.Rc1#
      • 1...Raxc4
        • 2.Rxa5#
      • 1...Rexc4
        • 2.Be7#
      • 1...Bxc4
        • 2.Rc8#
      • 1...Sbxc4
        • 2.Sd3#
      • 1...Sdxc4
        • 2.Sxe4#
      • 1...Rb4
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(h);P-FLIGHT::QAR2(G)
    • R(d);OGATE,SBLOCK::R(A),XP(g)
    • R(e);N_GUARD,SBLOCK::B(E)
    • B(i);OGATE,SBLOCK::R(H)
    • B(i);OGATE::R(H)
    • S(a);N_GUARD,SBLOCK::S(B)
    • S(b);N_GUARD,SBLOCK,S_CUTR(d)::S(B),XR(e)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(h);P-FLIGHT::QAR2(G)
      • Refutation
        • R(e);XB(E)
  • Actual
    • P(D);
    • Threat
      • QAR1(G)
    • Vars
      • K(h);OGATEB,P-FLIGHT,XP(D)::R(A)
      • R(d);OGATE,SBLOCK,XP(D)::R(A),XP(g)
      • R(e);N_GUARD,SBLOCK,XP(D)::B(E)
      • B(i);OGATE,SBLOCK,XP(D)::R(H)
      • S(a);N_GUARD,SBLOCK,XP(D)::S(B)
      • S(b);N_GUARD,SBLOCK,XP(D)::S(B),XR(e)
      • R(d);SBLOCK::QAR2(G)
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