MESON Chess Problem Database

Problem Display
PID: 254386 (8/8/2ppK3/8/4k3/1N2r1p1/6N1/3Q4 w - - 0 1)

Shmatov, Vladimir Afanasievich

Zadachi i Etyudi, 2005

8/8/2ppK3/8/4k3/1N2r1p1/6N1/3Q4

#2

4 + 5

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Qxe2#
    • 1...Rd3
      • 2.Qg4#
    • 1...Rf3
      • 2.Qd4#
    • 1...c5
      • 2.Qd5#
    • 1...d5
      • 2.Sc5#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qf5#
      • 1...Rf3
        • 2.Qc4#
      • 1...Rxb3!
  • Keys
    • 1.Sc1!
      • threat
        • 2.Qg4#
      • 1...Re2
        • 2.Qd3#
      • 1...Rf3
        • 2.Qa4#

Anticipated by 89948(1997)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(a);OGATEB::QAR2(A),XR(a)
    • R(a);SBLOCK::QAR2(A)
    • R(a);SBLOCK::QAR1(A)
    • P(d);N_GUARD::QAB1(A)
    • P(e);N_GUARD::S(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(a);SBLOCK::QAR2(A)
      • Refutation
        • R(a);XS(C)
  • Actual
    • S(C);
    • Threat
      • QAR2(A)
    • Vars
      • R(a);N_GUARD::QAB1(A)
      • R(a);SBLOCK::QAR(A)
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