MESON Chess Problem Database

Problem Display
PID: 147017 (2R5/r1n1N2K/1p4B1/1p2p2Q/1N1k1p2/P1bP4/n2P4/2R5 w - - 0 1)

Sammelius, Carel Johan Robert

Probleemblad, 1978

2R5/r1n1N2K/1p4B1/1p2p2Q/1N1k1p2/P1bP4/n2P4/2R5

#2

10 + 9

1085 Australian Chess Problem Magazine 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qxe5#
    • 1...Ba1
      • 2.Sbc6#
      • 2.Sf5#
      • 2.Sec6#
    • 1...Bb2
      • 2.Sbc6#
      • 2.Sf5#
      • 2.Sec6#
    • 1...Bxd2
      • 2.Sf5#
    • 1...Sd5
      • 2.Sc2#
    • 1...Sa6
      • 2.Sc2#
    • 1...Se6
      • 2.Sc2#
    • 1...Sa8
      • 2.Sc2#
    • 1...Se8
      • 2.Sc2#
    • 1...e4
      • 2.Sec6#
  • Tries
    • 1.Re1?
      • threat
        • 2.Qxe5#
      • 1...e4
        • 2.Sec6#
        • 2.Rxe4#
      • 1...Kc5!
    • 1.Rd8+?
      • 1...Sd5
        • 2.Rxd5#
      • 1...Kc5!
    • 1.Qe2?
      • threat
        • 2.Qf2#
      • 1...Kc5
        • 2.Qxe5#
      • 1...Bxd2
        • 2.Sbc6#
        • 2.Sf5#
        • 2.Sec6#
        • 2.Qe4#
      • 1...Sd5
        • 2.Sc2#
        • 2.Qe4#
      • 1...e4!
    • 1.Qf3?
      • threat
        • 2.Qf2#
      • 1...Kc5
        • 2.Qd5#
      • 1...Bxd2
        • 2.Sbc6#
        • 2.Sf5#
        • 2.Sec6#
        • 2.Qe4#
      • 1...Sd5
        • 2.Sc2#
        • 2.Qe4#
        • 2.Qxd5#
      • 1...e4!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qg1#
      • 1...Kc5
        • 2.Qxe5#
      • 1...Bxd2
        • 2.Sf5#
      • 1...Sd5
        • 2.Sc2#
      • 1...f3
        • 2.Qe3#
      • 1...e4
        • 2.Sec6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(c);P_SPINB(b),P_SPINP(f),P_SPINS(i),S_FLIGHT::QAR2(F),XP(f)
    • B(b);XP(B)::S(H)
    • S(i);P_PINS(H)::S(E)
    • P(f);::S(H)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAB1(F),XP(f)
      • Refutation
        • K(c);P_SPINP(f),P_SPINS(i),S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • S(i);N_GUARD,P_PINS(H),P_SPINS(i)::R1(J),XS(i)
      • Refutation
        • K(c);P_SPINB(b),P_SPINP(f),S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • K(c);P_SPINB(b),P_SPINS(i),S_FLIGHT::QAR2(F),XP(f)
      • Refutation
        • P(f);
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • K(c);P_SPINB(b),P_SPINS(i),S_FLIGHT::QAR1(F)
      • Refutation
        • P(f);
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • K(c);P_SPINB(b),P_SPINP(f),P_SPINS(i),S_FLIGHT::QAR2(F),XP(f)
      • B(b);XP(B)::S(H)
      • S(i);P_PINS(H)::S(E)
      • P(d);OGATE::QAB1(F)
      • P(f);::S(H)
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