MESON Chess Problem Database

Problem Display
PID: 48404 (rR4B1/RQ6/2p5/N1P1B3/4qPpK/n2kp2p/2Npp3/n1bbr3 w - - 0 1)

Mladenovic, Slobodan

3rd HM., Olympic Ty., 1972

rR4B1/RQ6/2p5/N1P1B3/4qPpK/n2kp2p/2Npp3/n1bbr3

#2

10 + 14

273 Mat Plus 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7+
      • 2.Bxh7#
      • 2.Qxh7#
    • 1...S1xc2
      • 2.Qb3#
    • 1...Sb3
      • 2.Qxb3#
    • 1...Sc4
      • 2.Sb4#
  • Tries
    • 1.Qh7?
      • threat
        • 2.Sb4#
      • 1...Qxh7+
        • 2.Bxh7#
      • 1...Kxc2
        • 2.Qxe4#
      • 1...Bxc2
        • 2.Rd7#
      • 1...S1xc2
        • 2.Rb3#
      • 1...S3xc2
        • 2.Bc4#
      • 1...Qf5
        • 2.Qxf5#
      • 1...Qg6
        • 2.Qxg6#
      • 1...Rxb8!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Sb4#
      • 1...Qxh7+
        • 2.Qxh7#
      • 1...Kxc2
        • 2.Bxe4#
      • 1...Bxc2
        • 2.Qd7#
      • 1...S1xc2
        • 2.Qb3#
      • 1...S3xc2
        • 2.Qa6#
      • 1...Qf5
        • 2.Bxf5#
      • 1...Qg6
        • 2.Bxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD,XS(A)::QAR2(H)
    • S(a);N_GUARD::QAR2(H),XS(a)
    • S(g);S_CUTQ(k)::S(A)
  • Tries
    • Try
      • Q(H);P_PINQ(k)
      • Threat
        • S(A)
      • Vars
        • Q(k);CHECK,N_SPINQ(k),OGATE,XQ(H)::B(J),XQ(k)
        • K(h);S_FLIGHT,XS(A)::QAB(H),XQ(k)
        • B(c);SBLOCK,XS(A)::R(G)
        • S(a);N_GUARD,SBLOCK,XS(A)::R(I)
        • S(g);N_GUARD,SBLOCK,XS(A)::B(J)
        • Q(k);OGATEB::QAB(H),XQ(k)
      • Refutation
        • R(n);XR(I)
  • Actual
    • B(J);P_PINQ(k)
    • Threat
      • S(A)
    • Vars
      • Q(k);CHECK,N_SPINQ(k),OGATE,XB(J)::QAB(H),XQ(k)
      • K(h);S_FLIGHT,XS(A)::B(J),XQ(k)
      • B(c);SBLOCK,XS(A)::QAR(H)
      • S(a);N_GUARD,XS(A)::QAR2(H)
      • S(g);N_GUARD,SBLOCK,XS(A)::QAB(H)
      • Q(k);OGATEB::B(J),XQ(k)
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