MESON Chess Problem Database

Problem Display
PID: 220519 (B4b1r/7b/2Q1p3/1p6/1p1k1P2/4R1R1/7N/1rn3NK w - - 0 1)

Kunzelmann, Jens

Zipf, Volker

Freie Presse, 1982

B4b1r/7b/2Q1p3/1p6/1p1k1P2/4R1R1/7N/1rn3NK

#2

8 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4+
      • 2.Rxe4#
    • 1...Bg8
      • 2.Re4#
    • 1...b3
      • 2.Qc3#
    • 1...e5
      • 2.Qd5#
  • Tries
    • 1.f5?
      • threat
        • 2.Re4#
      • 1...exf5
        • 2.Qd5#
      • 1...Bxf5!
  • Keys
    • 1.Rxe6!
      • threat
        • 2.Qd5#
      • 1...Be4+
        • 2.Rxe4#
      • 1...Bd3
        • 2.Sf3#
      • 1...Sd3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(g);CHECK,N_GUARD,P_PINS(C)::R1(D),XB(g)
    • B(g);N_GUARD,P_PINS(C)::R1(D)
    • P(c);N_GUARD::QAB1(G)
    • P(f);N_GUARD::QAR1(G)
  • Tries
    • Try
      • P(F);
      • Threat
        • R1(D)
      • Vars
        • P(f);N_GUARD,XP(F)::QAR1(G)
      • Refutation
        • B(g);P_PINS(C),XP(F)
  • Actual
    • R(D);XP(f)
    • Threat
      • QAR1(G)
    • Vars
      • B(g);CHECK,N_GUARD,P_PINS(C)::R1(D),XB(g)
      • B(g);P_PINS(C),SBLOCK::S(A)
      • S(b);P_PINS(A),SBLOCK::S(C)
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