MESON Chess Problem Database

Problem Display
PID: 208210 (1k3N2/p5R1/P2K1p2/1p3p2/2b2B1b/2Q5/4p1r1/2R1n2B w - - 0 1)

Kuligin, Nikolai Volodimirovich

Sachova skladba, 1993

1k3N2/p5R1/P2K1p2/1p3p2/2b2B1b/2Q5/4p1r1/2R1n2B

#2

8 + 10

3253 Apprenti Sorcier 1996
4393 Uralski Problemist 1996
5454 Near Snap 2018
3713 Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Kd7#
    • 1...Rh2
      • 2.Kd7#
    • 1...Rg3
      • 2.Kd7#
    • 1...Rg5
      • 2.Kd7#
    • 1...Rg6
      • 2.Kd7#
    • 1...Ba2
      • 2.Qc8#
    • 1...Bb3
      • 2.Qc8#
    • 1...Bd3
      • 2.Qc8#
    • 1...Bd5
      • 2.Qc8#
    • 1...Bf7
      • 2.Qc8#
    • 1...Bg8
      • 2.Qc8#
  • Tries
    • 1.Rd7?
      • threat
        • 2.Rd8#
      • 1...Ka8
        • 2.Rd8#
      • 1...Be6
        • 2.Qc8#
      • 1...Kc8!
    • 1.Re7?
      • threat
        • 2.Re8#
      • 1...Ka8
        • 2.Re8#
      • 1...Kc8
        • 2.Re8#
      • 1...Bf7
        • 2.Qc8#
      • 1...Be6!
    • 1.Qa5?
      • threat
        • 2.Qd8#
      • 1...Ka8
        • 2.Qd8#
      • 1...Kc8
        • 2.Qc7#
      • 1...Be6!
    • 1.Qe3?
      • threat
        • 2.Qe8#
      • 1...Ka8
        • 2.Qxa7#
        • 2.Qe8#
      • 1...Kc8
        • 2.Qe8#
      • 1...Be6
        • 2.Qxa7#
      • 1...Bf7!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Sd7#
      • 1...Ka8
        • 2.Se6#
      • 1...Kc8
        • 2.Sg6#
      • 1...Rxg8
        • 2.Kd7#
      • 1...Bxg8
        • 2.Qc8#

Anticipated by 18130(1953)

This anticipates 271937(1995)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(c);::B(D)+K(F)
    • B(d);OGATE::QAR1(C)
  • Tries
    • Try
      • R(G);
      • Threat
        • R(G)
      • Vars
        • K(j);P-FLIGHT,P_SPINR(c)::R(G)
        • B(d);OGATE::QAR1(C)
      • Refutation
        • K(j);P-FLIGHT,P_SPINB(d)
    • Try
      • R(G);
      • Threat
        • R(G)
      • Vars
        • K(j);P-FLIGHT,P_SPINR(c)::R(G)
        • K(j);P-FLIGHT,P_SPINB(d)::R(G)
        • B(d);OGATE::QAR1(C)
      • Refutation
        • B(d);
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • K(j);P-FLIGHT,P_SPINR(c)::QAR(C)
        • K(j);P-FLIGHT,P_SPINB(d)::QAR1(C)
      • Refutation
        • B(d);
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(j);P-FLIGHT,P_SPINB(d)::QAR2(C)
        • B(d);::QAB1(C),XP(i)
      • Refutation
        • B(d);
  • Actual
    • R(G);
    • Threat
      • R(G)+S(H),DCHECK
    • Vars
      • K(j);P-FLIGHT,P_SPINR(c)::R(G)+S(H)
      • K(j);P-FLIGHT,P_SPINB(d)::R(G)+S(H)
      • R(c);XR(G)::B(D)+K(F)
      • B(d);OGATE,XR(G)::QAR1(C)
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