MESON Chess Problem Database

Problem Display
PID: 161704 (7K/3NP1N1/2p2R1p/3kp3/R7/1P2p2r/4B2B/b7 w - - 0 1)

Dujardin, Paul

diagrammes, 1992

7K/3NP1N1/2p2R1p/3kp3/R7/1P2p2r/4B2B/b7

#2

9 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Rd6#
    • 1...c5
      • 2.Sb6#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Rd6#
      • 1...e4
        • 2.Bc4#
      • 1...Bd4!
    • 1.Se8?
      • threat
        • 2.Sc7#
        • 2.Rd6#
      • 1...e4
        • 2.Sc7#
      • 1...Bd4!
    • 1.Bf3+?
      • 1...e4
        • 2.Bxe4#
        • 2.Rd6#
      • 1...Rxf3!
    • 1.Bb5?
      • threat
        • 2.Bxc6#
      • 1...c5
        • 2.Sb6#
        • 2.Bc6#
      • 1...cxb5!
    • 1.Bxe5?
      • threat
        • 2.Rd6#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Bxe5!
    • 1.Rh4?
      • threat
        • 2.Bc4#
      • 1...e4
        • 2.Rd6#
      • 1...Rxh4!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Bc4#
      • 1...e4
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • P(e);::R1(E)
    • P(f);SBLOCK::S(F)
  • Tries
    • Try
      • S(H);
      • Threat
        • R1(E)
      • Vars
        • P(e);P_PINR(E),SBLOCK::B(A)
      • Refutation
        • B(a);
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);P_PINR(E)::S(H)
      • Refutation
        • B(a);
    • Try
      • B(A);CHECK
      • Refutation
        • R(c);XB(A)
    • Try
      • B(A);
      • Threat
        • B(A),XP(f)
      • Refutation
        • P(f);XB(A)
    • Try
      • B(B);XP(e)
      • Threat
        • R1(E)
      • Vars
        • B(a);N_GUARD::R1(D),XB(a)
      • Refutation
        • B(a);XB(B)
    • Try
      • R(D);
      • Threat
        • B(A)
      • Vars
        • P(e);::R1(E)
      • Refutation
        • R(c);XR(D)
  • Actual
    • R(D);
    • Threat
      • B(A)
    • Vars
      • P(e);::R1(E)
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