MESON Chess Problem Database

Problem Display
PID: 99908 (n3N3/Npr2P2/2PP4/3kp3/7R/2P2pPB/1nK2Q2/8 w - - 0 1)

Szabo, Tibor

Magyar Sakkelet, 1988

n3N3/Npr2P2/2PP4/3kp3/7R/2P2pPB/1nK2Q2/8

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.c4#
    • 1...Sd3
      • 2.c4#
    • 1...Sa4
      • 2.c4#
    • 1...e4
      • 2.Qd4#
  • Tries
    • 1.Rd4+?
      • 1...exd4
        • 2.Qxd4#
      • 1...Kc5!
    • 1.f8Q?
      • threat
        • 2.Sf6#
      • 1...e4
        • 2.Qd4#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Re7!
    • 1.f8S?
      • threat
        • 2.Be6#
      • 1...e4
        • 2.Qd4#
      • 1...Re7!
  • Keys
    • 1.Rh5!
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::P(C)
    • P(d);N_GUARD::QAR1(B)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • P(d);OGATE,XR(F)::QAR1(B),XP(d)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(J);
      • Threat
        • S(K)
      • Vars
        • P(d);N_GUARD::QAR1(B)
        • R(f);N_GUARD::QAB(J),XR(f)
      • Refutation
        • R(f);
    • Try
      • P(J);
      • Threat
        • B(E)
      • Vars
        • P(d);N_GUARD::QAR1(B)
      • Refutation
        • R(f);
  • Actual
    • R(F);P_PINP(d)
    • Threat
      • QAR1(B)
    • Vars
      • K(c);N_SPINP(d),S_FLIGHT::B(E)
      • K(c);N_SPINP(d),S_FLIGHT::S(K)
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