MESON Chess Problem Database

Problem Display
PID: 170070 (8/8/8/5p2/B1p1kp2/3Rp3/Q7/4NK2 w - - 0 1)

Ljevakovic, Ramo

StrateGems, 2017

8/8/8/5p2/B1p1kp2/3Rp3/Q7/4NK2

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...e2+
      • 2.Qxe2#
    • 1...c3
      • 2.Qd5#
      • 2.Qe6#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Bc6#
        • 2.Qd4#
      • 1...e2+
        • 2.Qxe2#
      • 1...cxd3
        • 2.Bc6#
      • 1...f3
        • 2.Qd4#
      • 1...c3!
  • Keys
    • 1.Sf3!
      • 1...e2+
        • 2.Qxe2#
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kxf3
        • 2.Qg2#
      • 1...cxd3
        • 2.Bc6#
      • 1...c3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);CHECK,OGATEB::QAR2(C),XP(a)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);CHECK,OGATEB::QAR2(C),XP(a)
        • P(b);XR(D)::B(E)
        • P(d);::QAR1(C)
      • Refutation
        • P(b);
  • Actual
    • S(A);
    • Vars
      • P(a);CHECK,OGATEB::QAR2(C),XP(a)
      • K(c);OGATEB,S_FLIGHT,XR(D)::QAB1(C)
      • K(c);OGATEB,P_SPINP(a),S_FLIGHT,XS(A)::QAB1(C)
      • P(b);SBLOCK,XR(D)::B(E)
      • P(b);OGATE::QAB1(C)
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