MESON Chess Problem Database

Problem Display
PID: 248694 (8/8/5b2/R3p3/2pk4/8/4K3/4Q3 w - - 0 1)

Belchikov, Nikolai Ivanovich

Uralski Problemist, 2007

8/8/5b2/R3p3/2pk4/8/4K3/4Q3

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qd2#
  • Tries
    • 1.Qa1+?
      • 1...c3
        • 2.Qa4#
      • 1...Ke4!
    • 1.Qg1+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Kc3!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe3#
      • 1...Ke4
        • 2.Qg4#
      • 1...c3
        • 2.Qd3#
      • 1...Bg5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • P(a);OGATEB,P_SPINP(a),SBLOCK::QAR(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • P(a);N_GUARD::QAR1(A)
      • B(d);N_GUARD::QAB1(A),XP(c)
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