MESON Chess Problem Database

Problem Display
PID: 200532 (6R1/3nR3/Q7/3rprp1/3p1k1b/q3pn1B/3B1NPp/5N1K w - - 0 1)

Kovalic, Jan

Sachova skladba, 2001

6R1/3nR3/Q7/3rprp1/3p1k1b/q3pn1B/3B1NPp/5N1K

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Bxe3#
    • 1...e4
      • 2.Rxe4#
    • 1...g4
      • 2.Rxg4#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qe4#
        • 2.Qxf5#
      • 1...Bxf2
        • 2.Qxf5#
      • 1...Sxd2
        • 2.Qxf5#
      • 1...Rf6
        • 2.Qe4#
      • 1...Rf7
        • 2.Qe4#
      • 1...Rf8
        • 2.Qe4#
      • 1...Sc5
        • 2.Qxf5#
      • 1...Sf6
        • 2.Qxf5#
      • 1...e4
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...g4
        • 2.Rxg4#
        • 2.Qe4#
      • 1...Qxd3!
    • 1.Qe6?
      • threat
        • 2.Qxf5#
      • 1...Rf6
        • 2.Qg4#
      • 1...Rf7
        • 2.Qg4#
      • 1...Rf8
        • 2.Qg4#
      • 1...e4
        • 2.Qxe4#
      • 1...g4
        • 2.Rxg4#
      • 1...Qd3!
    • 1.Qg6?
      • threat
        • 2.Qxf5#
      • 1...Rf6
        • 2.Qe4#
      • 1...Rf7
        • 2.Qe4#
      • 1...Rf8
        • 2.Qe4#
      • 1...e4
        • 2.Rxe4#
      • 1...g4
        • 2.Qxg4#
      • 1...Qd3!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qxf3#
      • 1...Sxd2
        • 2.Qg4#
      • 1...exd2
        • 2.Qe4#
      • 1...Se1
        • 2.Qg4#
      • 1...Sg1
        • 2.Qg4#
      • 1...e4
        • 2.Rxe4#
      • 1...g4
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD,S_CUTQ(b)::B(C),XP(c)
    • P(i);OGATE::R1(H),XP(i)
    • P(k);OGATE::R1(I),XP(k)
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);XS(D)::QAR1(G),XR(j)
        • S(d);N_SPINP(c),XB(C)::QAR1(G),XR(j)
        • R(j);::QAR1(G)
        • S(l);::QAR1(G),XR(j)
      • Refutation
        • Q(b);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XR(j)
      • Vars
        • R(j);OGATE::QAR1(G)
        • P(i);OGATE::QAR1(G),XP(i)
        • P(k);OGATE::R1(I),XP(k)
      • Refutation
        • Q(b);
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XR(j)
      • Vars
        • R(j);OGATE::QAR1(G)
        • P(i);OGATE::R1(H),XP(i)
        • P(k);OGATE::QAR1(G),XP(k)
      • Refutation
        • Q(b);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G),XS(d)
    • Vars
      • S(d);N_SPINP(c),OGATE,XB(C)::QAR1(G)
      • P(c);N_SPINP(c),OGATE,XB(C)::QAR1(G)
      • S(d);OGATE::QAR1(G)
      • P(i);OGATE::R1(H),XP(i)
      • P(k);OGATE::R1(I),XP(k)
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