MESON Chess Problem Database

Problem Display
PID: 225571 (KnRBRn2/1P3P2/3k1Np1/8/6p1/1p1N1p2/b1p1p3/2r1r2q w - - 0 1)

Kuligin, Nikolai Volodimirovich

Praca, 1993

KnRBRn2/1P3P2/3k1Np1/8/6p1/1p1N1p2/b1p1p3/2r1r2q

#2

8 + 13

6490 yacpdb 2020
3713 Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Bc7#
    • 1...Se6
      • 2.Be7#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Sce4#
      • 1...Se6
        • 2.Rxe6#
      • 1...f2!
    • 1.Se5?
      • threat
        • 2.Sc4#
      • 1...Sc6
        • 2.Rxc6#
      • 1...b2!
    • 1.Se4+?
      • 1...Kd7
        • 2.Sdc5#
        • 2.Se5#
        • 2.Rc7#
        • 2.Re7#
      • 1...Kd5!
    • 1.Rc5?
      • threat
        • 2.Bc7#
      • 1...Sc6
        • 2.Rd5#
      • 1...Se6
        • 2.Be7#
      • 1...Sa6!
    • 1.Re3?
      • threat
        • 2.Be7#
      • 1...Sc6
        • 2.Bc7#
      • 1...Se6!
    • 1.Re4?
      • threat
        • 2.Be7#
      • 1...Sc6
        • 2.Bc7#
      • 1...Se6!
  • Keys
    • 1.Re5!
      • threat
        • 2.Be7#
      • 1...Sc6
        • 2.Bc7#
      • 1...Se6
        • 2.Rd5#

This anticipates 275991(1993)

There are these versions: 929

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(l);SBLOCK::B(G)
    • S(m);SBLOCK::B(G)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • S(m);N_GUARD::R1(H),XS(m)
      • Refutation
        • P(h);P_PINP(C)
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • S(l);N_GUARD::R1(F),XS(l)
      • Refutation
        • P(g);
    • Try
      • S(B);CHECK
      • Refutation
        • K(j);P-FLIGHT
    • Try
      • R(F);
      • Threat
        • B(G)
      • Vars
        • S(l);SBLOCK::R1(F)
        • S(m);SBLOCK::B(G)
      • Refutation
        • S(l);
    • Try
      • R(H);
      • Threat
        • B(G)
      • Vars
        • S(l);SBLOCK::B(G)
      • Refutation
        • S(m);
    • Try
      • R(H);
      • Threat
        • B(G)
      • Vars
        • S(l);SBLOCK::B(G)
      • Refutation
        • S(m);
  • Actual
    • R(H);
    • Threat
      • B(G)
    • Vars
      • S(l);SBLOCK::B(G)
      • S(m);SBLOCK::R1(H)
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