MESON Chess Problem Database

Problem Display
PID: 178128 (4r2n/PN1Q1R1B/Kp2p1qb/3P4/1R1nk1N1/p2r1pP1/5B2/8 w - - 0 1)

Zilahi, Zoltan

Schach-Echo, 1938

4r2n/PN1Q1R1B/Kp2p1qb/3P4/1R1nk1N1/p2r1pP1/5B2/8

#2

11 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Rxd4#
    • 1...Rc3
      • 2.Rxd4#
    • 1...Ra8
      • 2.Qxe6#
    • 1...Rb8
      • 2.Qxe6#
    • 1...Rc8
      • 2.Qxe6#
    • 1...Rd8
      • 2.Qxe6#
    • 1...Rf8
      • 2.Qxe6#
    • 1...Rg8
      • 2.Qxe6#
    • 1...Bf4
      • 2.Rxf4#
    • 1...Bg7
      • 2.Rf4#
    • 1...Bf8
      • 2.Rf4#
    • 1...Sxf7
      • 2.Bxg6#
    • 1...b5
      • 2.Sc5#
    • 1...exd5
      • 2.Sd6#
      • 2.Qxe8#
    • 1...e5
      • 2.Sf6#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Sd6#
      • 1...Sxf7
        • 2.Bxg6#
      • 1...Bf4
        • 2.Rxf4#
      • 1...Bf8
        • 2.Rf4#
      • 1...Rd8!
  • Keys
    • 1.Kxb6!
      • threat
        • 2.Sc5#
      • 1...exd5+
        • 2.Sd6#
      • 1...e5+
        • 2.Sf6#
      • 1...Sxf7
        • 2.Bxg6#
      • 1...Rc3
        • 2.Rxd4#
      • 1...Rb8
        • 2.Qxe6#
      • 1...Rc8
        • 2.Qxe6#
      • 1...Bf8
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(b);N_GUARD::R1(C),XS(d)
    • R(j);N_GUARD,P_PINP(G)::QAR2(I),XP(g)
    • R(j);N_GUARD::QAR2(I),XP(g)
    • B(i);N_GUARD::R1(J),XB(i)
    • B(i);N_GUARD::R1(J)
    • S(k);N_GUARD,XR(J)::B(K),XQ(h)
    • P(f);N_GUARD::S(H)
    • P(g);SBLOCK::S(D)
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(H)
      • Vars
        • S(k);N_GUARD,XR(J)::B(K),XQ(h)
        • B(i);N_GUARD::R1(J),XB(i)
        • B(i);N_GUARD::R1(J)
      • Refutation
        • R(j);
  • Actual
    • K(F);P-FLIGHT,XP(f)
    • Threat
      • S(H)
    • Vars
      • P(g);CHECK,SBLOCK,XP(E)::S(H)
      • P(g);CHECK,SBLOCK::S(D)
      • S(k);N_GUARD,XR(J)::B(K),XQ(h)
      • R(b);N_GUARD::R1(C),XS(d)
      • R(j);N_GUARD,P_PINS(H)::QAR2(I),XP(g)
      • R(j);N_GUARD::QAR2(I),XP(g)
      • B(i);N_GUARD::R1(J)
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