MESON Chess Problem Database

Problem Display
PID: 164711 (6K1/RQp5/pq2n3/8/p7/2BP4/N1R4p/Nk6 w - - 0 1)

Bartolovic, Hrvoje

Die Schwalbe, 1969

6K1/RQp5/pq2n3/8/p7/2BP4/N1R4p/Nk6

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Qxb2#
    • 1...Qb3
      • 2.Qh1#
    • 1...Qb4
      • 2.Qh1#
      • 2.Qxb4#
    • 1...Qb5
      • 2.Qh1#
    • 1...Qxb7
      • 2.Rxb7#
    • 1...Sd4
      • 2.Qh1#
    • 1...Sc5
      • 2.Qh1#
    • 1...c5
      • 2.Qh1#
      • 2.Qxb6#
    • 1...c6
      • 2.Qxb6#
  • Tries
    • 1.Rb2+?
      • 1...Qxb2
        • 2.Qxb2#
      • 1...Kxa1!
    • 1.Rf2?
      • threat
        • 2.Qh1#
      • 1...Qxb7
        • 2.Rxb7#
      • 1...Qb2
        • 2.Qxb2#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...c6
        • 2.Qxb6#
      • 1...Qb3!
    • 1.d4?
      • threat
        • 2.Qh1#
      • 1...Qxb7
        • 2.Rxb7#
      • 1...Qb2
        • 2.Qxb2#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...c6
        • 2.Qxb6#
      • 1...Qb5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qh1#
      • 1...Qxb7
        • 2.Rxb7#
      • 1...Qb2
        • 2.Qxb2#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...Qb4
        • 2.Qxb4#
      • 1...c6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • Q(e);OGATE::QAR1(G),XQ(e)
    • Q(e);N_GUARD::QAR(G)
    • Q(e);N_SPINQ(e),OGATE,XQ(G)::R(F),XQ(e)
    • S(f);::QAR(G)
    • P(g);N_GUARD::QAR(G),XQ(e)
  • Tries
    • Try
      • R(C);CHECK,N_PINQ(e)
      • Vars
        • Q(e);OGATE,P_SPINQ(e),XR(C)::QAR1(G),XQ(e)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • R(C);
      • Threat
        • QAR(G)
      • Vars
        • Q(e);N_SPINQ(e),OGATE,XQ(G)::R(F),XQ(e)
        • Q(e);OGATE::QAR1(G),XQ(e)
        • P(b);::QAR(G),XQ(b)
        • P(b);::QAR(G),XS(b)
        • P(b);::QAR(G),XB(b)
        • P(b);::QAR(G),XR(b)
        • P(g);N_GUARD::QAR(G),XQ(e)
      • Refutation
        • Q(e);
    • Try
      • P(E);
      • Threat
        • QAR(G)
      • Vars
        • Q(e);N_SPINQ(e),OGATE,XQ(G)::R(F),XQ(e)
        • Q(e);OGATE::QAR1(G),XQ(e)
        • P(b);::QAR(G),XQ(b)
        • P(b);::QAR(G),XS(b)
        • P(b);::QAR(G),XB(b)
        • P(b);::QAR(G),XR(b)
        • P(g);N_GUARD::QAR(G),XQ(e)
      • Refutation
        • Q(e);
  • Actual
    • B(D);
    • Threat
      • QAR(G)
    • Vars
      • Q(e);N_SPINQ(e),OGATE,XQ(G)::R(F),XQ(e)
      • Q(e);OGATE::QAR1(G),XQ(e)
      • P(b);::QAR(G),XQ(b)
      • P(b);::QAR(G),XS(b)
      • P(b);::QAR(G),XB(b)
      • P(b);::QAR(G),XR(b)
      • Q(e);OGATE::QAR(G),XQ(e)
      • P(g);N_GUARD::QAR(G),XQ(e)
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