MESON Chess Problem Database

Problem Display
PID: 225573 (2BB4/b7/6N1/7P/K3kr2/2PR4/2PQbrp1/4R1n1 w - - 0 1)

Kuligin, Nikolai Volodimirovich

Praca, 2001

2BB4/b7/6N1/7P/K3kr2/2PR4/2PQbrp1/4R1n1

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Rxe3#
      • 2.Qxe3#
    • 1...Bb8
      • 2.Re3#
      • 2.Qe3#
    • 1...Sf3
      • 2.Qxf4#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Re3#
        • 2.Qe3#
      • 1...R2f3
        • 2.Rd4#
      • 1...R4f3
        • 2.Rd4#
      • 1...Bxb6!
    • 1.Rxe2+?
      • 1...Rxe2
        • 2.Qxf4#
      • 1...Be3
        • 2.Rexe3#
        • 2.Rdxe3#
        • 2.Qxe3#
      • 1...Sxe2!
    • 1.Rd4+?
      • 1...Kf3
        • 2.Qxf4#
      • 1...Bxd4!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qd3#
      • 1...Kf3+
        • 2.Qxf4#
      • 1...Kf5+
        • 2.Rd4#
      • 1...R2f3
        • 2.Re7#
      • 1...R4f3
        • 2.Re7#
      • 1...Be3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(a);S_CUTR(c)::QAR1(C),XR(f)
  • Tries
    • Try
      • B(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);SBLOCK::R1(E)
        • R(f);SBLOCK::R1(E)
      • Refutation
        • B(g);XB(J)
    • Try
      • R(A);CHECK,XB(b)
      • Vars
        • R(c);XR(A)::QAR1(C),XR(f)
      • Refutation
        • S(a);XR(A)
    • Try
      • R(E);CHECK
      • Vars
        • K(e);N_SPINB(b),P_PINR(E),S_FLIGHT::QAR1(C),XR(f)
      • Refutation
        • B(g);XR(E)
  • Actual
    • R(E);
    • Threat
      • QAB1(C)
    • Vars
      • K(e);CHECK,N_SPINB(b),S_FLIGHT::QAR1(C),XR(f)
      • K(e);CHECK,N_SPINB(b),S_FLIGHT::B(I)+R(E)
      • R(c);SBLOCK::R(E)
      • R(f);SBLOCK::R(E)
      • B(g);N_SPINB(b),SBLOCK::QAB1(C)
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