MESON Chess Problem Database

Problem Display
PID: 23256 (2n5/p1Pppq2/P2p1b2/p2kp3/N2N2B1/6P1/PQ1P4/K1R1R2b w - - 0 1)

Burger, Robert Eugene

Comm., The Problemist, 1996/II

2n5/p1Pppq2/P2p1b2/p2kp3/N2N2B1/6P1/PQ1P4/K1R1R2b

#2

12 + 11

145 StrateGems 1999

SOLUTION

  • SOUND
  • Sets
    • 1...exd4
      • 2.Qb3#
      • 2.Qb5#
      • 2.Qb7#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.Sf4#
      • 1...e4
        • 2.Sf4#
      • 1...Sb6!
    • 1.Sf5?
      • threat
        • 2.Qb3#
      • 1...Ke6
        • 2.Se3#
      • 1...e4
        • 2.Se3#
      • 1...Sb6!
    • 1.Bxd7?
      • threat
        • 2.Bc6#
      • 1...Qe8
        • 2.Be6#
      • 1...e4!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb3#
      • 1...Kc6
        • 2.Qb7#
      • 1...e4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(I);
      • Threat
        • QAB(E)
      • Vars
        • K(c);S_FLIGHT::R(C)+S(I)
        • P(d);N_GUARD,P_PINQ(E)::S(I)
      • Refutation
        • S(k);
    • Try
      • S(I);
      • Threat
        • QAB(E)
      • Vars
        • K(c);P_SPINP(d),S_FLIGHT::B(J)+S(I)
        • P(d);P_PINQ(E),SBLOCK::S(I)
      • Refutation
        • S(k);
    • Try
      • B(J);XP(h)
      • Threat
        • B(J)
      • Vars
        • Q(j);N_GUARD::B(J)
      • Refutation
        • P(d);
  • Actual
    • S(I);
    • Threat
      • QAR2(E)
    • Vars
      • K(c);S_FLIGHT::QAB1(E)
      • P(d);P_PINQ(E),SBLOCK::S(I)
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