MESON Chess Problem Database

Problem Display
PID: 166876 (7K/6QB/8/p2p1P1N/3Bk2p/1R1n2bR/4rpP1/1N1n4 w - - 0 1)

Pituk, Alexander

Nepszava, 1938

7K/6QB/8/p2p1P1N/3Bk2p/1R1n2bR/4rpP1/1N1n4

#2

10 + 9

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sd2#
    • 1...Rd2
      • 2.Sxd2#
    • 1...Re3
      • 2.Sd2#
    • 1...S1b2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Sf4
      • 2.Qe5#
  • Tries
    • 1.Sxg3+?
      • 1...Kf4
        • 2.Rxh4#
      • 1...hxg3!
    • 1.Sf6+?
      • 1...Kf4
        • 2.Qh6#
        • 2.Qg4#
      • 1...Kxd4!
    • 1.Rxh4+?
      • 1...Bf4
        • 2.Sg3#
      • 1...Sf4
        • 2.Sxg3#
        • 2.Qe5#
      • 1...Bxh4!
  • Keys
    • 1.Be3!
      • threat
        • 2.Qd4#
      • 1...Kxe3
        • 2.Qe5#
      • 1...Rxe3
        • 2.Sd2#
      • 1...Sxe3
        • 2.Sc3#
      • 1...d4
        • 2.Qxd4#
      • 1...Be5
        • 2.f6#
      • 1...Se5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(b);N_GUARD::S(A)
    • R(b);N_GUARD::S(A),XR(b)
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD::S(A),XS(a)
    • S(d);N_GUARD,S_CUTB(e)::QAR1(H)
  • Tries
    • Try
      • S(G);CHECK,XB(e)
      • Vars
        • K(f);P-FLIGHT::R(D),XP(g)
      • Refutation
        • P(g);XS(G)
    • Try
      • S(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,XB(E)
    • Try
      • R(D);CHECK,XP(g)
      • Vars
        • B(e);P_SPINB(e)::S(G)
      • Refutation
        • B(e);XR(D)
  • Actual
    • B(E);
    • Threat
      • QAR1(H)
    • Vars
      • K(f);P-FLIGHT,P_SPINB(e),P_SPINS(d),XB(E)::QAR2(H)
      • R(b);N_GUARD,SBLOCK,XB(E)::S(A)
      • S(a);N_GUARD,SBLOCK,XB(E)::S(A)
      • P(i);::QAR1(H),XP(i)
      • B(e);P_PINQ(H),SBLOCK::B(I)+P(F)
      • S(d);SBLOCK::S(G)
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