MESON Chess Problem Database

Problem Display
PID: 185305 (6N1/Kp6/6PQ/pr4R1/3N1kp1/2nP2R1/3b4/7n w - - 0 1)

Isenegger, Samuel

Basler Nachrichten, 1929

6N1/Kp6/6PQ/pr4R1/3N1kp1/2nP2R1/3b4/7n

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.R5xg4#
    • 1...Be3
      • 2.R3xg4#
    • 1...Sxg3
      • 2.Rxb5#
      • 2.Rc5#
      • 2.Rd5#
      • 2.Rf5#
    • 1...Sb1
      • 2.Se2#
    • 1...Sd1
      • 2.Se2#
    • 1...Sa2
      • 2.Se2#
    • 1...Se2
      • 2.Sxe2#
    • 1...Sa4
      • 2.Se2#
    • 1...Se4
      • 2.Se2#
    • 1...Sd5
      • 2.Se2#
  • Keys
    • 1.Qh2!
      • threat
        • 2.Se6#
      • 1...Kxg5
        • 2.Qh6#
      • 1...Rxg5
        • 2.Rf3#
      • 1...Sxg3
        • 2.Qxd2#
      • 1...Rf5
        • 2.Rxf5#
      • 1...Re5
        • 2.R5xg4#
      • 1...Rb6
        • 2.Rf5#
      • 1...Be3
        • 2.R3xg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • R(g);SBLOCK::QAB(F)+R(D),DCHECK,XP(e)
    • B(b);P_PINS(C),SBLOCK::R1(B),XP(e)
    • S(c);N_GUARD::S(C)
    • S(c);N_GUARD::S(C),XS(c)
  • Actual
    • Q(F);
    • Threat
      • S(C)
    • Vars
      • K(d);OGATEB,P_SPINP(e),S_FLIGHT,XR(D)::QAB1(F)
      • R(g);SBLOCK,XR(D)::QAB(F)+R(B),DCHECK
      • S(a);P_SPINS(a),SBLOCK,XR(B)::QAB(F),XB(b)
      • R(g);N_GUARD::R1(D),XR(g)
      • R(g);SBLOCK::R1(D),XP(e)
      • R(g);N_GUARD::R1(D)
      • B(b);P_PINS(C),SBLOCK::QAB(F)+R(B),DCHECK,XP(e)
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