MESON Chess Problem Database

Problem Display
PID: 110620 (nQ3N2/2r1N1p1/4R1pr/p4P1p/P3pk1B/7P/2p1PP2/2K5 w - - 0 1)

Fink, Adolf Jay

The Produnk Club, 1915

nQ3N2/2r1N1p1/4R1pr/p4P1p/P3pk1B/7P/2p1PP2/2K5

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rh7
      • 2.Sfxg6#
    • 1...Rh8
      • 2.Sfxg6#
    • 1...Sb6
      • 2.Qxc7#
    • 1...e3
      • 2.fxe3#
    • 1...gxf5
      • 2.Sd5#
    • 1...g5
      • 2.Bg3#
  • Tries
    • 1.Sexg6+?
      • 1...Kxf5
        • 2.Re5#
      • 1...Rxg6!
    • 1.Sh7?
      • threat
        • 2.Bg3#
        • 2.Bg5#
      • 1...g5
        • 2.Bg3#
        • 2.Bxg5#
      • 1...Rxh7!
    • 1.Qb4?
      • threat
        • 2.Rxe4#
        • 2.Qd6#
        • 2.Qxe4#
      • 1...Rxe7
        • 2.Qxe4#
      • 1...gxf5
        • 2.Sd5#
        • 2.Qd6#
      • 1...Rc4
        • 2.Qd6#
      • 1...Rc5
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Rc6
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Rd7
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...axb4!
    • 1.f6?
      • 1...Rh7
        • 2.Sfxg6#
      • 1...Rh8
        • 2.Sfxg6#
      • 1...Sb6
        • 2.Qxc7#
      • 1...e3
        • 2.fxe3#
      • 1...g5
        • 2.Bg3#
      • 1...gxf6!
  • Keys
    • 1.f3!
      • threat
        • 2.Rxe4#
      • 1...Ke3
        • 2.Rxe4#
      • 1...exf3
        • 2.e3#
      • 1...gxf5
        • 2.Sd5#
      • 1...e3
        • 2.Re4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(g);N_GUARD::S(K),XP(f)
    • S(j);N_GUARD::QAB(J),XR(h)
    • P(b);OGATE::P(C),XP(b)
    • P(f);SBLOCK,XP(G)::S(I)
    • P(f);SBLOCK::B(F)
  • Tries
    • Try
      • S(I);CHECK,XP(f)
      • Vars
        • K(c);N_SPINR(h),P-FLIGHT,XP(G)::R1(H)
      • Refutation
        • R(g);XS(I)
    • Try
      • S(K);
      • Threat
        • DUALS(2)
      • Refutation
        • R(g);XS(K)
    • Try
      • Q(J);N_PINR(h),P_PINP(b)
      • Threat
        • DUALS(3)
      • Vars
        • R(h);XS(I)::QAR1(J),XP(b)
        • R(h);N_SPINP(b)::QAB(J)
      • Refutation
        • P(d);N_SPINP(b),XQ(J)
    • Try
      • P(G);
      • Vars
        • R(g);N_GUARD::S(K),XP(f)
        • S(j);N_GUARD::QAB(J),XR(h)
        • P(b);OGATE::P(C),XP(b)
        • P(f);SBLOCK::B(F)
      • Refutation
        • P(i);XP(G)
  • Actual
    • P(C);
    • Threat
      • R1(H),XP(b)
    • Vars
      • K(c);N_SPINR(h),P_SPINP(b),S_FLIGHT::R1(H),XP(b)
      • P(b);SBLOCK,XP(C)::P(B)
      • P(f);SBLOCK,XP(G)::S(I)
      • P(b);::R1(H)
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