MESON Chess Problem Database

Problem Display
PID: 238537 (1R2b2K/8/8/r1p5/kBBn4/PR3Q2/3N4/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Kopyl, Valery Volodimirovich

Pat a Mat, 2011

1R2b2K/8/8/r1p5/kBBn4/PR3Q2/3N4/8

#2

8 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxa8#
      • 2.Qxa8#
    • 1...Sxb3
      • 2.Bxb3#
      • 2.Qxb3#
    • 1...cxb4
      • 2.R3xb4#
      • 2.R8xb4#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sc3#
      • 1...cxb4
        • 2.R3xb4#
        • 2.R8xb4#
      • 1...Sb5
        • 2.Sxc5#
      • 1...Se2!
    • 1.Ra8?
      • threat
        • 2.Rxa5#
      • 1...Rxa8
        • 2.Qxa8#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...cxb4
        • 2.Rxb4#
      • 1...Ra6
        • 2.Rxa6#
      • 1...Ra7
        • 2.Rxa7#
      • 1...Sc6!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxa5#
      • 1...Rxa8
        • 2.Rxa8#
      • 1...Sxb3
        • 2.Bxb3#
      • 1...cxb4
        • 2.R8xb4#
      • 1...Ra6
        • 2.Qxa6#
      • 1...Ra7
        • 2.Qxa7#
      • 1...Sc6
        • 2.Bb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • S(b);S_CUTR(c)::S(A),XP(d)
      • Refutation
        • S(b);
    • Try
      • R(G);P_PINR(c)
      • Threat
        • R1(G),XR(c)
      • Vars
        • R(c);N_SPINR(c),OGATE,XR(G)::QAR(D),XR(c)
        • S(b);OGATE,XR(C)::QAB1(D),XS(b)
        • P(d);OGATE,XB(E)::R1(C),XP(d)
        • R(c);OGATEB::R(G),XR(c)
      • Refutation
        • S(b);
  • Actual
    • Q(D);P_PINR(c)
    • Threat
      • QAR1(D),XR(c)
    • Vars
      • R(c);N_SPINR(c),OGATE,XQ(D)::R(G),XR(c)
      • S(b);OGATE,XR(C)::B(F),XS(b)
      • P(d);OGATE,XB(E)::R1(G),XP(d)
      • R(c);OGATEB::QAR2(D),XR(c)
      • R(c);OGATEB::QAR(D),XR(c)
      • S(b);N_GUARD,S_CUTB(e)::B(F)
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