MESON Chess Problem Database

Problem Display
PID: 12107 (1B6/r4NpK/p1p3Rp/5R2/P2k2p1/P1nbNr2/3Q4/7B w - - 0 1)

Lender, Baruch

1st HM., Themes-64, 1974

1B6/r4NpK/p1p3Rp/5R2/P2k2p1/P1nbNr2/3Q4/7B

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Rf4#
      • 2.Rxg4#
  • Tries
    • 1.Sc2+?
      • 1...Ke4
        • 2.Sd6#
        • 2.Re5#
        • 2.Qf4#
      • 1...Kc4!
    • 1.Be5+?
      • 1...Ke4
        • 2.Sd6#
        • 2.Rf4#
        • 2.Rxg4#
      • 1...Kc5!
    • 1.Bxa7+?
      • 1...Ke4
        • 2.Sd6#
        • 2.Rxg4#
        • 2.Re6#
      • 1...c5!
    • 1.Rxc6?
      • threat
        • 2.Rc4#
      • 1...Ke4
        • 2.Rf4#
      • 1...Rxe3
        • 2.Bxa7#
        • 2.Qxc3#
      • 1...Rc7!
    • 1.Rd6+?
      • 1...Ke4
        • 2.Qxd3#
      • 1...Sd5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rc4#
      • 1...Ke4
        • 2.Rxg4#
      • 1...Kxc5
        • 2.Bxa7#
      • 1...Rxe3
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(d);N_SPINB(b),P-FLIGHT
    • Try
      • B(J);CHECK
      • Refutation
        • K(d);N_SPINB(b),S_FLIGHT
    • Try
      • B(J);CHECK,XR(i)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • R(G);P_SPINR(F),XP(g)
      • Threat
        • R1(G)
      • Vars
        • K(d);N_PINR(F),N_SPINB(b),P-FLIGHT,P_SPINR(c)::R1(F)
      • Refutation
        • R(i);
    • Try
      • R(G);CHECK,P_SPINR(F)
      • Vars
        • K(d);N_PINR(F),N_SPINB(b),P-FLIGHT,P_SPINR(c)::QAB1(B),XB(b)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • R(F);P_SPINR(G)
    • Threat
      • R1(F)
    • Vars
      • K(d);N_PINR(G),N_SPINB(b),P-FLIGHT,P_SPINR(c)::R(G),XP(e)
      • K(d);N_SPINB(b),OGATEB,S_FLIGHT,XR(F)::B(J),XR(i)
      • R(c);SBLOCK,XS(D)::QAB1(B),XS(a)
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