MESON Chess Problem Database

Problem Display
PID: 99897 (8/1pKB4/2p3r1/2Nkp3/1P5R/1n2P3/2R5/8 w - - 0 1)

Trommler, Sven

Magyar Sakkelet, 1988

8/1pKB4/2p3r1/2Nkp3/1P5R/1n2P3/2R5/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Be6#
    • 1...Rg2
      • 2.Be6#
    • 1...Rg3
      • 2.Be6#
    • 1...Rg4
      • 2.Be6#
    • 1...Rg5
      • 2.Be6#
    • 1...Re6
      • 2.Bxe6#
    • 1...Rg8
      • 2.Be6#
    • 1...Sa1
      • 2.Rd2#
    • 1...Sd2
      • 2.Rxd2#
    • 1...Sd4
      • 2.e4#
    • 1...Sa5
      • 2.Rd2#
    • 1...Sxc5
      • 2.Rxc5#
  • Tries
    • 1.Sxb3?
      • threat
        • 2.Rd2#
        • 2.Rc5#
        • 2.e4#
      • 1...e4
        • 2.Rc5#
      • 1...Rg2
        • 2.Rc5#
        • 2.e4#
      • 1...c5
        • 2.Rd2#
        • 2.Rxc5#
        • 2.e4#
      • 1...b6
        • 2.Rd2#
        • 2.e4#
      • 1...Rg4!
    • 1.Rd4+?
      • 1...Sxd4
        • 2.e4#
      • 1...exd4!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc3#
      • 1...Rg4
        • 2.Sf6#
      • 1...Sd4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • R(e);N_GUARD::B(G)
    • R(e);N_GUARD::B(G),XR(e)
    • S(a);N_GUARD::R(A)
    • S(a);N_GUARD::R(A),XS(a)
    • S(a);SBLOCK::P(B)
    • S(a);OGATE,XS(E)::R1(A),XS(a)
  • Tries
    • Try
      • S(E);XS(a)
      • Threat
        • DUALS(3)
      • Vars
        • P(c);::R1(A)
      • Refutation
        • R(e);
    • Try
      • R(D);CHECK
      • Vars
        • S(a);SBLOCK,XR(D)::P(B)
      • Refutation
        • P(c);XR(D)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(e);N_GUARD::S(E)
      • S(a);N_GUARD::R1(A)
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