MESON Chess Problem Database

Problem Display
PID: 261397 (1K2R3/3Q4/8/1N1pp1B1/2p1kNn1/4n1R1/2p1p3/5rb1 w - - 0 1)

Kuzovkov, Aleksandr S

Neue Zurcher Zeitung, 1997

1K2R3/3Q4/8/1N1pp1B1/2p1kNn1/4n1R1/2p1p3/5rb1

#2

7 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qh7#
    • 1...Sg2
      • 2.Qh7#
    • 1...Sf5
      • 2.Qxd5#
    • 1...d4
      • 2.Sd6#
  • Tries
    • 1.Rxe5+?
      • 1...Kxe5
        • 2.Qe6#
      • 1...Sxe5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Qxd5#
      • 1...Kf5
        • 2.Qh7#
      • 1...Sd1
        • 2.Sd6#
      • 1...Sg2
        • 2.Sd6#
      • 1...Sf5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::QAB(E)
    • S(e);N_GUARD,SBLOCK::QAB1(E),XP(i)
    • P(i);SBLOCK::S(C)
  • Tries
    • Try
      • R(G);CHECK,XP(j)
      • Vars
        • K(g);P-FLIGHT,S_CUTS(h),XR(G)::QAR1(E)
      • Refutation
        • S(h);XR(G)
  • Actual
    • S(B);N_PINP(j)
    • Threat
      • S(B)
    • Vars
      • K(g);N_GUARD,P_SPINP(i),P_SPINS(e),S_FLIGHT::QAR2(E),XP(i)
      • K(g);S_CUTR(a),S_CUTS(e),S_FLIGHT::QAB(E)
      • S(e);::S(C)
      • S(e);SBLOCK::S(C)
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