MESON Chess Problem Database

Problem Display
PID: 235702 (8/8/8/4R3/2p2p2/PBkpPqpQ/3Nprp1/2B1bbK1 w - - 0 1)

Makaronets, Leonid

Mat, 1975

8/8/8/4R3/2p2p2/PBkpPqpQ/3Nprp1/2B1bbK1

#2

8 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...cxb3
      • 2.Rc5#
  • Keys
    • 1.Qh8!
      • threat
        • 2.Re4#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Rd5#
        • 2.Rf5#
        • 2.Rg5#
        • 2.Rh5#
        • 2.Re6#
        • 2.Re7#
        • 2.Re8#
      • 1...Qxe3
        • 2.Rxe3#
      • 1...Bxd2
        • 2.Rb5#
      • 1...cxb3
        • 2.Rc5#
      • 1...fxe3
        • 2.Rf5#
      • 1...Qe4
        • 2.Rxe4#
      • 1...Qg4
        • 2.Rg5#
      • 1...Qd5
        • 2.Rxd5#
      • 1...Qh5
        • 2.Rxh5#
      • 1...Qc6
        • 2.Re6#
      • 1...Qb7
        • 2.Re7#
      • 1...Qa8
        • 2.Re8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • P(j);OGATEB,XB(E)::R(H)
  • Actual
    • Q(G);
    • Threat
      • DUALS(11)
    • Vars
      • Q(h);OGATE,XP(F)::QAB(G)+R(H),XQ(h)
      • B(a);XS(C)::QAB(G)+R(H)
      • P(j);XB(E)::QAB(G)+R(H),DCHECK
      • P(k);XP(F)::QAB(G)+R(H)
      • Q(h);::QAB(G)+R(H),XQ(h)
      • Q(h);::QAB(G)+R(H)
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