MESON Chess Problem Database

Problem Display
PID: 99774 (1N6/3n3q/2Rn4/pk6/p1b1R3/3r1N1r/5B1p/4QB1K w - - 0 1)

Szoghy, Jozsef

Mongolian Chess Magazine, 1977

1N6/3n3q/2Rn4/pk6/p1b1R3/3r1N1r/5B1p/4QB1K

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Sd4#
    • 1...Rb3
      • 2.Sd4#
    • 1...Re3
      • 2.Sd4#
    • 1...Rd4
      • 2.Sxd4#
      • 2.Qb1#
    • 1...Rd5
      • 2.Qb1#
    • 1...Ba2
      • 2.Sd4#
    • 1...Bb3
      • 2.Sd4#
    • 1...Bd5
      • 2.Sd4#
    • 1...Be6
      • 2.Sd4#
    • 1...Bf7
      • 2.Sd4#
    • 1...Bg8
      • 2.Sd4#
    • 1...Se5
      • 2.Rb6#
    • 1...Sb6
      • 2.Rc5#
      • 2.Rxb6#
    • 1...Sf6
      • 2.Rb6#
    • 1...Sxb8
      • 2.Rb6#
    • 1...Sf8
      • 2.Rb6#
  • Keys
    • 1.Re5+!
      • 1...Rd5
        • 2.Sd4#
      • 1...Bd5
        • 2.Qb1#
      • 1...Sc5
        • 2.Rexc5#
      • 1...Sxe5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(b);N_GUARD,P_SPINB(e)::S(E)
    • R(b);N_GUARD,P_SPINB(e)::QAR(A)
    • B(e);P_SPINR(b)::S(E)
    • S(i);N_GUARD::R1(G)
    • S(i);N_GUARD,XS(H)::R1(G)
  • Actual
    • R(F);CHECK
    • Vars
      • R(b);P_SPINB(e),P_SPINR(b)::S(E)
      • B(e);P_PINS(E),P_SPINB(e),P_SPINR(b)::QAR(A)
      • S(i);N_GUARD,P_SPINS(i)::R1(F),XS(i)
      • S(i);XR(F)::R1(G)
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