MESON Chess Problem Database

Problem Display
PID: 8101 (8/3b2K1/q2p4/3Q3B/rRp2Nnr/4kNB1/R1p2p2/6n1 w - - 0 1)

Velimirovic, Milan

Mat Plus, 1995

8/3b2K1/q2p4/3Q3B/rRp2Nnr/4kNB1/R1p2p2/6n1

#2

8 + 11

3335 Cyclone 2000
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Sg2#
    • 1...Sh2
      • 2.Qd4#
    • 1...Se5
      • 2.Qd4#
    • 1...Sf6
      • 2.Qd4#
    • 1...Sh6
      • 2.Qd4#
    • 1...c1Q
      • 2.Sg2#
    • 1...c1S
      • 2.Sg2#
    • 1...c1B
      • 2.Sg2#
    • 1...c1R
      • 2.Sg2#
    • 1...c3
      • 2.Qe4#
  • Tries
    • 1.Sh2?
      • threat
        • 2.Sf1#
      • 1...Sxh2
        • 2.Sg2#
      • 1...c1Q
        • 2.Sg2#
      • 1...c1R
        • 2.Sg2#
      • 1...f1Q
        • 2.Sxf1#
      • 1...f1S
        • 2.Sxf1#
      • 1...f1B
        • 2.Sxf1#
      • 1...f1R
        • 2.Sxf1#
      • 1...c3
        • 2.Qd4#
      • 1...Rxh2!
    • 1.Ra3+?
      • 1...c3
        • 2.Qe4#
      • 1...Rxa3!
    • 1.Qd2+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxf3!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sf1#
      • 1...c1Q
        • 2.Qe4#
      • 1...c1R
        • 2.Qe4#
      • 1...f1Q
        • 2.Sxf1#
      • 1...f1S
        • 2.Sxf1#
      • 1...f1B
        • 2.Sxf1#
      • 1...f1R
        • 2.Sxf1#
      • 1...Sh2
        • 2.Sg2#
      • 1...c3
        • 2.Qd4#

Anticipated by 17778(1949)

This is after 137213

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • S(a);SBLOCK::S(E)
    • S(g);::QAB1(F)
    • P(b);::S(E)
    • P(f);::QAR1(F)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(g);XS(B)::S(E)
        • P(b);::S(E)
        • P(c);::S(B),XQ(c)
        • P(c);::S(B),XS(c)
        • P(c);::S(B),XB(c)
        • P(c);::S(B),XR(c)
        • P(f);::QAB1(F)
      • Refutation
        • R(h);XS(B)
    • Try
      • R(A);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(F)
      • Refutation
        • R(e);XR(A)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINP(f)::QAB1(F)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(g),XS(B)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • P(b);::QAR1(F)
      • P(c);::S(B),XQ(c)
      • P(c);::S(B),XS(c)
      • P(c);::S(B),XB(c)
      • P(c);::S(B),XR(c)
      • S(g);::S(E)
      • P(f);::QAB1(F)
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