MESON Chess Problem Database

Problem Display
PID: 104653 (1Q6/2p5/2P5/3BkNp1/K3NqP1/4pPP1/4P3/8 w - - 0 1)

Velimirovic, Milan

Mat, 1979

1Q6/2p5/2P5/3BkNp1/K3NqP1/4pPP1/4P3/8

#2

10 + 5

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Ba2?
      • threat
        • 2.Qxc7#
        • 2.Qb2#
        • 2.Qb5#
        • 2.Qe8#
        • 2.Qh8#
      • 1...Qxg3
        • 2.Qxc7#
      • 1...Qxf3
        • 2.Qe8#
      • 1...Qxg4
        • 2.Qb5#
      • 1...Qxf5
        • 2.Qb2#
      • 1...Qxe4+!
    • 1.Bf7?
      • threat
        • 2.Qxc7#
        • 2.Qb2#
        • 2.Qb5#
        • 2.Qe8#
        • 2.Qh8#
      • 1...Qxg3
        • 2.Qxc7#
      • 1...Qxf3
        • 2.Qe8#
      • 1...Qxg4
        • 2.Qb5#
      • 1...Qxf5
        • 2.Qb2#
      • 1...Qxe4+!
    • 1.Bg8?
      • threat
        • 2.Qxc7#
        • 2.Qb2#
        • 2.Qb5#
        • 2.Qe8#
      • 1...Qxg3
        • 2.Qxc7#
      • 1...Qxf3
        • 2.Qe8#
      • 1...Qxg4
        • 2.Qb5#
      • 1...Qxf5
        • 2.Qb2#
      • 1...Qxe4+!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Qxc7#
        • 2.Qb2#
        • 2.Qb5#
        • 2.Qe8#
        • 2.Qh8#
      • 1...Qxg3
        • 2.Qxc7#
      • 1...Qxf3
        • 2.Qe8#
      • 1...Qxe4
        • 2.Qh8#
      • 1...Qxg4
        • 2.Qb5#
      • 1...Qxf5
        • 2.Qb2#

This anticipates 213429(1992)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(5)
      • Vars
        • Q(b);N_PINS(E),XP(C)::QAB(J),XP(e)
        • Q(b);N_PINS(E),XP(B)::QAR(J)
        • Q(b);XP(F)::QAR(J)
        • Q(b);N_PINS(E),XS(H)::QAB(J)
      • Refutation
        • Q(b);CHECK,XS(E)
    • Try
      • B(G);
      • Threat
        • DUALS(5)
      • Vars
        • Q(b);N_PINS(E),XP(C)::QAB(J),XP(e)
        • Q(b);N_PINS(E),XP(B)::QAR(J)
        • Q(b);XP(F)::QAR(J)
        • Q(b);N_PINS(E),XS(H)::QAB(J)
      • Refutation
        • Q(b);CHECK,XS(E)
    • Try
      • B(G);
      • Threat
        • DUALS(4)
      • Vars
        • Q(b);N_PINS(E),XP(C)::QAB(J),XP(e)
        • Q(b);N_PINS(E),XP(B)::QAR(J)
        • Q(b);XP(F)::QAR(J)
        • Q(b);N_PINS(E),XS(H)::QAB(J)
      • Refutation
        • Q(b);CHECK,XS(E)
  • Actual
    • B(G);N_SPINS(E)
    • Threat
      • DUALS(5)
    • Vars
      • Q(b);XP(C)::QAB(J),XP(e)
      • Q(b);XP(B)::QAR(J)
      • Q(b);P_PINB(G),XS(E)::QAB(J)
      • Q(b);XP(F)::QAR(J)
      • Q(b);XS(H)::QAB(J)
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