MESON Chess Problem Database

Problem Display
PID: 110561 (2Nr1bb1/1pQ2q2/1PB2p2/2kP1R2/K1Pn4/4P3/2R4B/8 w - - 0 1)

Barna, Laszlo

Tipografia TE, 1969

2Nr1bb1/1pQ2q2/1PB2p2/2kP1R2/K1Pn4/4P3/2R4B/8

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc2
      • 2.Bd7#
    • 1...Se2
      • 2.Bd7#
    • 1...Sb3
      • 2.Bd7#
    • 1...Sf3
      • 2.Bd7#
    • 1...Sb5
      • 2.cxb5#
    • 1...Sxf5
      • 2.Bd7#
    • 1...Se6
      • 2.d6#
  • Tries
    • 1.Bxb7+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...Qxc7!
    • 1.d6+?
      • 1...Sxf5
        • 2.Bd7#
      • 1...Qd5!
  • Keys
    • 1.Bg1!
      • threat
        • 2.exd4#
      • 1...Sxc2
        • 2.Bd7#
      • 1...Sxf5
        • 2.Bd7#
      • 1...Sxc6
        • 2.e4#
      • 1...Se2
        • 2.Bd7#
      • 1...Sb3
        • 2.Bd7#
      • 1...Sf3
        • 2.Bd7#
      • 1...Sb5
        • 2.cxb5#
      • 1...Se6
        • 2.d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XR(A)::QAR(J)+B(I)
    • S(a);N_GUARD::QAR(J)+B(I)
    • S(a);OGATE::R(A)+P(E),XS(a)
    • S(a);N_GUARD,XR(G)::QAR(J)+B(I)
    • S(a);N_GUARD,S_CUTQ(e)::R(G)+P(F)
  • Tries
    • Try
      • B(I);CHECK,XP(d)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(J),XS(a)
      • Refutation
        • Q(e);XQ(J)
    • Try
      • P(F);CHECK
      • Vars
        • S(a);XR(G)::QAR(J)+B(I)
      • Refutation
        • Q(e);P_SPINQ(e)
  • Actual
    • B(B);
    • Threat
      • P(C),XS(a)
    • Vars
      • S(a);N_GUARD,XR(A)::QAR(J)+B(I)
      • S(a);N_GUARD,XR(G)::QAR(J)+B(I)
      • S(a);P_SPINS(a),XB(I)::B(B)+P(C)
      • S(a);N_GUARD::QAR(J)+B(I)
      • S(a);OGATE::R(A)+P(E),XS(a)
      • S(a);N_GUARD,S_CUTQ(e)::R(G)+P(F)
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