MESON Chess Problem Database

Problem Display
PID: 201798 (8/R5Q1/3p4/K2kN3/2p5/B3P2B/2P2P2/8 w - - 0 1)

Abdullayev, Suleyman

ChessStar, 2018

8/R5Q1/3p4/K2kN3/2p5/B3P2B/2P2P2/8

#2

9 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Qb7#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qg2#
      • 1...Ke4
        • 2.Qg2#
      • 1...Kxc6
        • 2.Qb7#
      • 1...c3!
    • 1.Bf5?
      • 1...dxe5
        • 2.Qb7#
        • 2.Qd7#
      • 1...c3!
    • 1.Re7?
      • threat
        • 2.Bg2#
        • 2.Qg2#
      • 1...Ke4
        • 2.Qg2#
      • 1...dxe5!
    • 1.Qf6?
      • threat
        • 2.Bg2#
      • 1...Ke4
        • 2.Bg2#
      • 1...dxe5!
    • 1.Qg4?
      • threat
        • 2.Qd4#
      • 1...Kxe5
        • 2.Qf5#
        • 2.Qe6#
        • 2.Qd4#
      • 1...dxe5!
    • 1.Qg6?
      • 1...Kxe5
        • 2.Qf5#
        • 2.Qe6#
      • 1...dxe5
        • 2.Rd7#
      • 1...c3!
    • 1.Qe7?
      • threat
        • 2.Bg2#
      • 1...dxe5
        • 2.Qb7#
      • 1...Ke4!
    • 1.Qf7+?
      • 1...Kxe5
        • 2.Re7#
        • 2.Qe6#
        • 2.Qf5#
      • 1...Ke4!
    • 1.Qh7?
      • 1...Kxe5
        • 2.Qf5#
      • 1...dxe5
        • 2.Qb7#
      • 1...c3!
    • 1.Qg8+?
      • 1...Kxe5
        • 2.Qe6#
      • 1...Ke4!
    • 1.c3?
      • 1...dxe5
        • 2.Qb7#
      • 1...Ke4!
    • 1.f3?
      • 1...dxe5
        • 2.Qb7#
        • 2.Qd7#
      • 1...c3!
    • 1.f4?
      • threat
        • 2.Qg2#
        • 2.Qb7#
      • 1...dxe5
        • 2.Qb7#
      • 1...Ke4!
  • Keys
    • 1.Sxc4!
      • 1...Kxc4
        • 2.Qd4#
      • 1...Ke4
        • 2.Qg2#
      • 1...Kc6
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK,XS(G)::QAB(I)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB(I)
      • Vars
        • K(b);S_FLIGHT::QAB(I)
        • K(b);OGATEB,S_FLIGHT,XS(G)::QAB1(I)
      • Refutation
        • P(a);
    • Try
      • B(E);
      • Refutation
        • P(a);
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAB(I)
      • Refutation
        • P(c);XS(G)
    • Try
      • Q(I);
      • Threat
        • B(E)
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • P(c);XS(G)
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Refutation
        • P(c);XS(G)
    • Try
      • Q(I);
      • Vars
        • P(c);OGATEB,SBLOCK,XS(G)::R(H)
      • Refutation
        • P(a);
    • Try
      • Q(I);
      • Threat
        • B(E)
      • Vars
        • P(c);SBLOCK,XS(G)::QAB(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(G)::QAR1(I)
        • P(c);SBLOCK,XS(G)::QAB(I)
      • Refutation
        • P(a);
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(G)::QAR1(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • P(c);SBLOCK,XS(G)::QAB(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);
      • Refutation
        • P(a);
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XS(G)::QAB(I)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(G);XP(a)
    • Vars
      • K(b);S_FLIGHT,XS(G)::QAR1(I)
      • K(b);S_FLIGHT::QAB(I)
      • K(b);S_FLIGHT::QAB1(I)
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