MESON Chess Problem Database

Problem Display
PID: 140864 (3rB3/3Pp3/pQbkP3/p2N1pn1/2P2P2/2p2R2/4R1K1/8 w - - 0 1)

Subotic, Miroslav

3rd Prize, Mat Plus, 1996

3rB3/3Pp3/pQbkP3/p2N1pn1/2P2P2/2p2R2/4R1K1/8

#2

10 + 9

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rc8
      • 2.dxc8S#
    • 1...Rxe8
      • 2.dxe8S#
    • 1...a4
      • 2.Qb4#
  • Tries
    • 1.Se3?
      • threat
        • 2.Sxf5#
      • 1...Kxe6
        • 2.Qxc6#
      • 1...Se4!
    • 1.Sb4?
      • threat
        • 2.Qxc6#
        • 2.c5#
      • 1...Sxe6
        • 2.Qxc6#
      • 1...Se4
        • 2.Qxc6#
      • 1...Rc8
        • 2.c5#
        • 2.dxc8S#
      • 1...axb4!
    • 1.Rd3?
      • threat
        • 2.c5#
      • 1...Se4
        • 2.Sc7#
      • 1...Sxe6!
  • Keys
    • 1.Sc7!
      • threat
        • 2.c5#
      • 1...Sxe6
        • 2.Rxe6#
      • 1...Se4
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(i);OGATE::PXR(i)=S
    • R(i);OGATE,XB(J)::PXR(i)=S
    • P(b);N_GUARD::QAB(G)
  • Tries
    • Try
      • S(F);P_SPINR(C)
      • Threat
        • S(F),XP(c)
      • Vars
        • K(g);P-FLIGHT,XP(H)::QAR2(G),XB(f)
      • Refutation
        • S(d);N_PINR(C)
    • Try
      • S(F);P_SPINR(C)
      • Threat
        • DUALS(2)
      • Vars
        • S(d);XP(H)::QAR1(G),XB(f)
        • S(d);N_PINR(C)::QAR1(G),XB(f)
      • Refutation
        • P(b);XS(F)
    • Try
      • R(C);P_SPINS(F)
      • Threat
        • P(D)
      • Vars
        • S(d);N_PINS(F)::R(C)+S(F)
      • Refutation
        • S(d);XP(H)
  • Actual
    • S(F);P_SPINR(C)
    • Threat
      • P(D)
    • Vars
      • S(d);OGATE,XP(H)::R1(A),XS(d)
      • S(d);N_PINR(C)::R(C)
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