MESON Chess Problem Database

Problem Display
PID: 104466 (4b3/2pR4/6B1/2PN2p1/1P2N1Q1/Pq1k2K1/2pp1P2/B1r1n2R w - - 0 1)

Nedeljkovic, Miomir

Sahovski Vestnik, 1951-1952

4b3/2pR4/6B1/2PN2p1/1P2N1Q1/Pq1k2K1/2pp1P2/B1r1n2R

#2

12 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4+
      • 2.Sec3#
    • 1...Qc4
      • 2.Sf4#
  • Tries
    • 1.Sxd2+?
      • 1...Bxg6
        • 2.Sf4#
      • 1...Kxd2+!
    • 1.Se3+?
      • 1...Qd5
        • 2.Rxd5#
      • 1...Bxd7!
    • 1.Sb6+?
      • 1...Qd5
        • 2.Rxd5#
      • 1...Bxd7!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Sf4#
      • 1...Ke2+
        • 2.Sec3#
      • 1...Kc4+
        • 2.Sdc3#
      • 1...Qxd5
        • 2.Qa6#
      • 1...Bxd7
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(f);CHECK,S_FLIGHT::QAR(H)+S(G)
    • Q(e);SBLOCK::R(L)+S(J),DCHECK
  • Tries
    • Try
      • S(G);CHECK,XP(d)
      • Vars
        • B(i);XB(K)::R(L)+S(J),DCHECK
      • Refutation
        • K(f);CHECK,P-FLIGHT,XS(G)
    • Try
      • S(J);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::R(L),XQ(e)
      • Refutation
        • B(i);XR(L)
    • Try
      • S(J);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::R(L),XQ(e)
      • Refutation
        • B(i);XR(L)
  • Actual
    • Q(H);
    • Threat
      • R(L)+S(J),DCHECK
    • Vars
      • K(f);CHECK,S_FLIGHT::QAR(H)+S(G),DCHECK
      • K(f);CHECK,S_FLIGHT::QAB(H)+S(J)
      • Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAB(H)
      • B(i);N_GUARD,XR(L)::B(K)+S(G)
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