MESON Chess Problem Database

Problem Display
PID: 183985 (Kn4R1/1Q6/p3pNp1/1p2pkPp/1q6/5NBP/4b3/4R3 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Die Schwalbe, 2018

Kn4R1/1Q6/p3pNp1/1p2pkPp/1q6/5NBP/4b3/4R3

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe1
      • 2.Qe4#
    • 1...Qd2
      • 2.Qe4#
    • 1...Qa3
      • 2.Qe4#
    • 1...Qc3
      • 2.Qe4#
    • 1...Qa5
      • 2.Qe4#
    • 1...Qc5
      • 2.Qe4#
    • 1...Qd6
      • 2.Qe4#
    • 1...Qe7
      • 2.Qe4#
    • 1...Qf8
      • 2.Qe4#
    • 1...Qb2
      • 2.Qe4#
    • 1...Qb3
      • 2.Qe4#
    • 1...Qe4
      • 2.Qxe4#
    • 1...Bd1
      • 2.Rxe5#
    • 1...Bf1
      • 2.Rxe5#
    • 1...Bd3
      • 2.Rxe5#
    • 1...Bxf3
      • 2.Rxe5#
    • 1...Bc4
      • 2.Rxe5#
      • 2.Qe4#
  • Tries
    • 1.Sh4+?
      • 1...Kxg5
        • 2.Rxg6#
      • 1...Qxh4!
    • 1.Se4?
      • threat
        • 2.Sh4#
      • 1...Qxe4
        • 2.Rf8#
      • 1...Bxf3
        • 2.Qf7#
      • 1...h4
        • 2.Sxh4#
      • 1...Sc6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxg6#
      • 1...Qe4+
        • 2.Sd5#
      • 1...Bxf3+
        • 2.Se4#

This is a version of 174881

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 14
  • Sets
    • Q(b);N_GUARD,XR(A)::QAB1(G)
    • Q(b);N_GUARD::QAB1(G)
    • Q(b);N_GUARD,P_PINQ(G)::QAB1(G),XQ(b)
    • B(a);OGATE::R1(A),XP(d)
    • B(a);OGATE,P_PINQ(G),XS(B)::R1(A),XP(d)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(i),XP(E)::R1(I),XP(i)
      • Refutation
        • Q(b);XS(B)
    • Try
      • S(F);
      • Threat
        • S(B)
      • Vars
        • Q(b);N_GUARD,P_PINQ(G),XS(F)::R(I)
        • B(a);XS(B)::QAR2(G)
        • P(f);::S(B),XP(f)
      • Refutation
        • S(j);
  • Actual
    • Q(G);
    • Threat
      • QAB1(G),XP(i)
    • Vars
      • Q(b);CHECK,SBLOCK::QAR(G)+S(F)
      • B(a);CHECK,XS(B)::QAR(G)+S(F)
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