MESON Chess Problem Database

Problem Display
PID: 241356 (1R2N3/1b3r2/p2R2q1/Bk4rp/pP1p2p1/4Nn2/1n4Q1/2b4K w - - 0 1)

Gavrilov, Constantin Grigorievich

Revista Romana de Sah, 1938

1R2N3/1b3r2/p2R2q1/Bk4rp/pP1p2p1/4Nn2/1n4Q1/2b4K

#2

8 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Rb6#
    • 1...Qc2
      • 2.Rb6#
    • 1...Qd3
      • 2.Rb6#
    • 1...Qe4
      • 2.Rb6#
    • 1...Qf5
      • 2.Rb6#
    • 1...Qh7
      • 2.Rb6#
    • 1...Qg7
      • 2.Rb6#
    • 1...Qg8
      • 2.Rb6#
    • 1...Rf4
      • 2.Sc7#
      • 2.Rxb7#
    • 1...Rf5
      • 2.Sc7#
      • 2.Rxb7#
    • 1...Rf6
      • 2.Sc7#
      • 2.Rxb7#
    • 1...Rc7
      • 2.Sxc7#
    • 1...Rf8
      • 2.Sc7#
      • 2.Rxb7#
    • 1...Se1
      • 2.Qc6#
    • 1...Sg1
      • 2.Qc6#
    • 1...Sd2
      • 2.Qc6#
    • 1...Sh2
      • 2.Qc6#
    • 1...Sh4
      • 2.Qc6#
    • 1...Se5
      • 2.Qd5#
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qc6#
      • 1...Se5+
        • 2.Rd5#
      • 1...Qxc2
        • 2.Rb6#
      • 1...Qxd6
        • 2.Sxd6#
      • 1...Qe4
        • 2.Rb6#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Rc7
        • 2.Sxc7#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 11
  • Sets
    • Q(k);N_GUARD::R1(F)
    • R(m);N_GUARD::S(H),XR(m)
    • S(c);OGATE,P_PINQ(B)::QAB1(B)
    • S(c);OGATE,P_PINQ(B)::QAR2(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • S(c);CHECK,S_CUTR(h)::R(F)
      • Q(k);N_GUARD,XQ(B)::R1(F)
      • Q(k);XR(F)::S(H),XQ(k)
      • Q(k);N_GUARD::R1(F)
      • R(h);N_GUARD::QAR1(B),XR(h)
      • R(m);N_GUARD::S(H),XR(m)
      • S(b);N_GUARD::QAB1(B),XS(b)
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