MESON Chess Problem Database

Problem Display
PID: 109490 (3KR3/8/3N4/1QPp4/1B1k2n1/R5r1/8/1b6 w - - 0 1)

Szoghy, Jozsef

Tipografia, 1975

3KR3/8/3N4/1QPp4/1B1k2n1/R5r1/8/1b6

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Bc3#
    • 1...Rg2
      • 2.Bc3#
    • 1...Rc3
      • 2.Bxc3#
    • 1...Rd3
      • 2.Sf5#
    • 1...Ba2
      • 2.Sf5#
    • 1...Bd3
      • 2.Bc3#
    • 1...Bf5
      • 2.Sxf5#
    • 1...Se3
      • 2.Bc3#
  • Tries
    • 1.Rd3+?
      • 1...Rxd3
        • 2.Sf5#
      • 1...Bxd3!
    • 1.Rxg3?
      • threat
        • 2.Bc3#
      • 1...Bd3
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...Se3!
    • 1.Qf1?
      • threat
        • 2.Sb5#
      • 1...Rd3
        • 2.Qf4#
      • 1...Bd3
        • 2.Qa1#
      • 1...Se5!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Sb5#
      • 1...Rd3
        • 2.Qxg4#
      • 1...Bd3
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::B(B)
    • R(b);N_GUARD::B(B),XR(b)
    • R(b);S_CUTB(a)::S(E)
    • B(a);N_GUARD::S(E)
    • B(a);S_CUTR(b)::B(B)
    • B(a);N_GUARD::S(E),XB(a)
    • S(d);S_CUTR(b)::B(B)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • R(b);XR(A)::S(E)
      • Refutation
        • B(a);XR(A)
    • Try
      • R(A);XR(b)
      • Threat
        • B(B)
      • Refutation
        • S(d);
    • Try
      • Q(C);
      • Threat
        • S(E)
      • Vars
        • R(b);S_CUTB(a)::QAR2(C)
        • B(a);OGATE::QAB(C)
      • Refutation
        • S(d);
  • Actual
    • Q(C);
    • Threat
      • S(E)
    • Vars
      • R(b);N_GUARD,S_CUTB(a)::QAR(C),XS(d)
      • B(a);S_CUTR(b)::QAB(C)
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