MESON Chess Problem Database

Problem Display
PID: 159292 (7K/1QR2B2/5r1k/8/8/5N2/8/8 w - - 0 1)

Abdullayev, Elmar

Kirichenko-60 JT, 2015

7K/1QR2B2/5r1k/8/8/5N2/8/8

#2

5 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Qxa6#
    • 1...Rb6
      • 2.Qxb6#
    • 1...Rc6
      • 2.Rxc6#
      • 2.Qxc6#
  • Tries
    • 1.Rc6?
      • threat
        • 2.Rxf6#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Re6
        • 2.Rxe6#
      • 1...Rg6!
    • 1.Qa6?
      • threat
        • 2.Qxf6#
      • 1...Rg6
        • 2.Qxg6#
      • 1...Rb6
        • 2.Qxb6#
      • 1...Rc6
        • 2.Rxc6#
        • 2.Qxc6#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re6
        • 2.Qxe6#
      • 1...Rxa6!
    • 1.Qb2?
      • threat
        • 2.Qxf6#
        • 2.Qh2#
      • 1...Rxf3
        • 2.Qg7#
      • 1...Rg6
        • 2.Qh2#
      • 1...Rf5
        • 2.Qg7#
      • 1...Rf4
        • 2.Qg7#
      • 1...Ra6
        • 2.Qc1#
        • 2.Qg7#
        • 2.Qd2#
        • 2.Qh2#
      • 1...Rb6
        • 2.Qc1#
        • 2.Qg7#
        • 2.Qd2#
        • 2.Qh2#
        • 2.Qxb6#
      • 1...Rc6
        • 2.Rxc6#
        • 2.Qg7#
        • 2.Qd2#
        • 2.Qh2#
      • 1...Rd6
        • 2.Qg7#
        • 2.Qh2#
      • 1...Re6
        • 2.Qg7#
        • 2.Qh2#
      • 1...Rxf7!
    • 1.Qb4?
      • threat
        • 2.Qf8#
        • 2.Qh4#
      • 1...Rxf3
        • 2.Qh4#
      • 1...Rg6
        • 2.Qh4#
      • 1...Rf5
        • 2.Qf8#
      • 1...Rf4
        • 2.Qf8#
        • 2.Qxf4#
      • 1...Rd6
        • 2.Qxd6#
        • 2.Qf4#
        • 2.Qh4#
      • 1...Rxf7!
    • 1.Qb6?
      • threat
        • 2.Qxf6#
      • 1...Rg6
        • 2.Qxg6#
      • 1...Rc6
        • 2.Rxc6#
        • 2.Qe3#
        • 2.Qxc6#
      • 1...Rd6
        • 2.Qe3#
        • 2.Qxd6#
      • 1...Re6
        • 2.Qxe6#
      • 1...Rxb6!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxf6#
      • 1...Rxc6
        • 2.Rxc6#
      • 1...Rg6
        • 2.Qxg6#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Re6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(a);OGATEB::QAB1(B),XR(a)
    • R(a);OGATEB::QAR(B),XR(a)
  • Tries
    • Try
      • R(C);P_PINR(a)
      • Threat
        • R(C),XR(a)
      • Vars
        • R(a);N_SPINR(a),OGATE,XR(C)::QAR(B),XR(a)
        • R(a);OGATEB::R(C),XR(a)
      • Refutation
        • R(a);
    • Try
      • Q(B);P_PINR(a)
      • Threat
        • QAR2(B),XR(a)
      • Vars
        • R(a);OGATE::QAR1(B),XR(a)
        • R(a);OGATEB::QAR(B),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);OGATE,XS(A)::QAB1(B)
        • R(a);::QAR(B)
        • R(a);OGATE::QAB1(B)
      • Refutation
        • R(a);XB(D)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XS(A)::QAR2(B)
        • R(a);::QAR2(B)
        • R(a);::QAB(B)
      • Refutation
        • R(a);XB(D)
    • Try
      • Q(B);P_PINR(a)
      • Threat
        • QAR2(B),XR(a)
      • Vars
        • R(a);OGATE::QAR1(B),XR(a)
        • R(a);OGATEB::QAR(B),XR(a)
      • Refutation
        • R(a);N_SPINR(a),XQ(B)
  • Actual
    • Q(B);P_PINR(a)
    • Threat
      • QAR2(B),XR(a)
    • Vars
      • R(a);N_SPINR(a),OGATE,XQ(B)::R(C),XR(a)
      • R(a);OGATE::QAR1(B),XR(a)
      • R(a);OGATEB::QAR(B),XR(a)
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