MESON Chess Problem Database

Problem Display
PID: 87666 (3r4/B7/4Qp1n/K1R5/ppNknp2/3b4/r3q3/b2R2N1 w - - 0 1)

Mladenovic, Slobodan

The Problemist, 1975

3r4/B7/4Qp1n/K1R5/ppNknp2/3b4/r3q3/b2R2N1

#2

7 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Sxe2#
    • 1...Bb2
      • 2.Sxe2#
    • 1...Sc3
      • 2.Rb5#
      • 2.Re5#
      • 2.Rf5#
      • 2.Rg5#
      • 2.Rh5#
      • 2.Rc6#
      • 2.Rc7#
      • 2.Rc8#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Sb2?
      • threat
        • 2.Rc4#
      • 1...Ke3
        • 2.Rd5#
      • 1...Sxc5
        • 2.Sxe2#
      • 1...Qh5
        • 2.Rxd3#
      • 1...Rd5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rc4#
      • 1...Ke3
        • 2.Rc3#
      • 1...Sxc5
        • 2.Sb5#
      • 1...Qh5
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::S(B),XQ(c)
    • B(a);S_CUTR(b)::S(B),XQ(c)
    • P(j);N_GUARD::QAB1(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • B(G)+R(E),DCHECK
      • Vars
        • K(g);N_SPINB(d),P_SPINS(h),S_FLIGHT::B(G)+R(E)
        • S(h);P_SPINS(h),XR(E)::S(B),XQ(c)
        • Q(c);N_GUARD,P_PINR(E)::R1(A),XB(d)
      • Refutation
        • R(l);P_PINR(E)
  • Actual
    • S(C);
    • Threat
      • B(G)+R(E),DCHECK
    • Vars
      • K(g);N_SPINB(d),P_SPINS(h),S_FLIGHT::B(G)+R(E)
      • S(h);P_SPINS(h),XR(E)::S(C)
      • Q(c);N_GUARD,P_PINR(E)::QAR1(F),XS(h)
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